10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2005

OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from            to

Commission file number 001-32548

NeuStar, Inc.

(Exact name of registrant as specified in its charter)

Delaware	52-2141938
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

46000 Center Oak Plaza
Sterling, Virginia 20166
(Address of principal executive offices) (zip code)

(571) 434-5400
(Registrant’s telephone number, including area code)

     Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

     Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ

     Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ

     There were 60,330,246 shares of Class A common stock, $0.001 par value, and 449,665 shares of Class B common stock, $0.001 par value, outstanding at November 1, 2005.

NeuStar, Inc.
Index

PART I            FINANCIAL INFORMATION

Item 1. Financial Statements

Consolidated Balance Sheets as of December 31, 2004 and September 30, 2005 (unaudited)

Consolidated Statements of Operations for the three and nine months ended September 30, 2004 and 2005 (unaudited)

Consolidated Statements of Cash Flows for the nine months ended September 30, 2004 and 2005 (unaudited)

Notes to Unaudited Consolidated Financial Statements

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Item 4. Controls and Procedures

PART II            OTHER INFORMATION

Item 1. Legal Proceedings

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Item 3. Defaults upon Senior Securities

Item 4. Submission of Matters to a Vote of Security Holders

Item 5. Other Information

Item 6. Exhibits

Signatures

2

PART I ¾ FINANCIAL INFORMATION

Item 1. Financial Statements

NEUSTAR, INC.

CONSOLIDATED BALANCE SHEETS
(in thousands, except per share data)

	December 31,		September 30,
	2004		2005
			(unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	19,019	$	16,029
Restricted cash		4,835		1,365
Short-term investments		44,910		68,250
Accounts receivable, net of allowance for doubtful accounts of $468 and $557, respectively		29,171		26,408
Unbilled receivables		980		5,212
Securitized notes receivable		3,325		1,704
Notes receivable		965		437
Prepaid expenses and other current assets		3,747		5,660
Deferred costs		1,570		2,648
Deferred tax asset		10,923		10,398
Total current assets		119,445		138,111
Restricted cash, long-term		835		—
Property and equipment, net		36,504		41,253
Goodwill		49,453		50,566
Intangible assets, net		1,250		2,873
Securitized notes receivable, long-term		1,074		—
Deferred costs, long-term		1,932		4,599
Other noncurrent assets		961		740
Total assets	$	211,454	$	238,142

See accompanying notes.

3

NEUSTAR, INC.

CONSOLIDATED BALANCE SHEETS
(in thousands, except per share data)

	December 31,			September 30,
	2004			2005
				(unaudited)
LIABILITIES AND STOCKHOLDERS’ (DEFICIT) EQUITY
Current liabilities:
Accounts payable	$	2,828		$	2,143
Accrued expenses		32,630			29,445
Income taxes payable		419			313
Customer credits		15,541			3,635
Deferred revenue		13,972			18,511
Notes payable		4,636			2,015
Capital lease obligations		4,813			5,417
Accrued restructuring reserve		1,330			699
Total current liabilities		76,169			62,178
Deferred revenue, long-term		13,812			16,624
Notes payable, long-term		1,358			1,320
Capital lease obligations, long-term		6,606			4,552
Accrued restructuring reserve, long-term		3,719			2,654
Deferred tax liability		1,194			1,405
Total liabilities		102,858			88,733
Commitments and contingencies		—			—
Series B Voting Convertible Preferred Stock, $0.01 par value; 4,000 shares authorized; 100 shares issued and outstanding at December 31, 2004; no shares authorized, issued or outstanding at September 30, 2005		66			—
Series C Voting Convertible Preferred Stock, $0.01 par value; 28,600 shares authorized; 28,570 shares issued and outstanding at December 31, 2004; no shares authorized, issued or outstanding at September 30, 2005		85,717			—
Series D Voting Convertible Preferred Stock, $0.01 par value; 10,000 shares authorized; 9,099 shares issued and outstanding at December 31, 2004; no shares authorized, issued or outstanding at September 30, 2005		54,671			—
Stockholders’ (deficit) equity:
Class A common stock, par value $0.001; no shares authorized, issued and outstanding at December 31, 2004; 200,000 shares authorized, 58,902 shares issued and outstanding at September 30, 2005		—			59
Class B common stock, par value $0.001; 100,000 shares authorized; 6,160 and 1,631 shares issued and outstanding at December 31, 2004 and September 30, 2005, respectively		6			2
Additional paid-in capital		—			140,781
Deferred stock compensation		(1,733	)		(1,406	)
Treasury stock, at cost, 236 and no shares at December 31, 2004 and September 30, 2005, respectively		(1,125	)		—
(Accumulated deficit) retained earnings		(29,006	)		9,973
Total stockholders’ (deficit) equity		(31,858	)		149,409
Total liabilities and stockholders’ (deficit) equity	$	211,454		$	238,142

See accompanying notes.

4

NEUSTAR, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per share data)
(unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2004			2005			2004			2005
Revenue:
Addressing	$	14,176		$	19,190		$	37,982		$	57,765
Interoperability		9,314			12,242			25,403			38,819
Infrastructure and other		21,739			27,528			60,168			82,464
Total revenue		45,229			58,960			123,553			179,048
Operating expense:
Cost of revenue (excluding depreciation and amortization shown separately below)		12,874			17,124			35,410			46,154
Sales and marketing		6,050			7,186			15,032			21,775
Research and development		1,938			3,092			5,409			8,540
General and administrative		5,310			5,626			13,781			22,045
Depreciation and amortization		4,263			4,223			13,487			11,740
Restructuring charges (recoveries)		—			17			—			(389	)
		30,435			37,268			83,119			109,865
Income from operations		14,794			21,692			40,434			69,183
Other (expense) income:
Interest expense		(527	)		(503	)		(1,873	)		(1,715	)
Interest income		380			559			1,100			1,756
Income before income taxes		14,647			21,748			39,661			69,224
Provision for (benefit from) income taxes		5,683			8,691			(1,504	)		27,653
Net income		8,964			13,057			41,165			41,571
Dividends on and accretion of preferred stock		(2,578	)		—			(7,568	)		(4,313	)
Net income attributable to common stockholders	$	6,386		$	13,057		$	33,597		$	37,258
Net income attributable to common stockholders per common share:
Basic	$	1.10		$	0.22		$	6.05		$	1.49
Diluted	$	0.11		$	0.17		$	0.51		$	0.54
Weighted average common shares outstanding:
Basic		5,804			60,351			5,550			25,016
Diluted		83,767			77,462			81,245			76,813

See accompanying notes.

5

NEUSTAR, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
(unaudited)

	Nine Months Ended
	September 30,
	2004			2005
Operating activities:
Net income	$	41,165		$	41,571
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		13,487			11,740
Stock-based compensation		1,897			2,541
Amortization of deferred financing costs		122			49
Deferred income taxes		(9,610	)		(263	)
Noncash restructuring benefit		—			(389	)
Provision for doubtful accounts		809			551
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable		(829	)		606
Unbilled receivables		(874	)		(4,232	)
Notes and securitized notes receivable		3,630			3,224
Prepaid expenses and other current assets		(3,001	)		(1,535	)
Deferred costs		(523	)		(3,746	)
Other assets		1,115			539
Accounts payable and accrued expenses		2,959			(2,494	)
Income taxes payable		4,757			(106	)
Accrued restructuring reserve		(262	)		(1,306	)
Customer credits		(13,500	)		(11,906	)
Deferred revenue		3,677			7,076
Net cash provided by operating activities		45,019			41,920
Investing activities:
Purchases of property and equipment		(9,228	)		(11,169	)
Purchases of investments, net		(36,655	)		(23,340	)
Business acquired, net of cash		—			(2,164	)
Net cash used in investing activities		(45,883	)		(36,673	)
Financing activities:
(Issuance) release of restricted cash		(8,066	)		4,304
Principal repayments on notes payable		(7,684	)		(4,322	)
Principal repayments on capital lease obligations		(6,006	)		(4,526	)
Proceeds from exercise of common stock options		82			2,571
Repurchase of common stock		(1,012	)		—
Payment of preferred stock dividends		—			(6,264	)
Net cash used in financing activities		(22,686	)		(8,237	)
Net decrease in cash and cash equivalents		(23,550	)		(2,990	)
Cash and cash equivalents at beginning of period		60,232			19,019
Cash and cash equivalents at end of period	$	36,682		$	16,029

See accompanying notes.

6

NEUSTAR, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS
FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2004 AND 2005

1. DESCRIPTION OF BUSINESS AND ORGANIZATION

     NeuStar, Inc. (the Company) provides the North American communications industry with essential clearinghouse services. The Company operates the sole authoritative directories that manage virtually all telephone area codes and numbers, and enable the dynamic routing of calls among thousands of competing communications service providers, or CSPs, in the United States and Canada. The Company also provides clearinghouse services to emerging CSPs including Internet service providers, cable television operators, and voice over internet protocol, or VoIP, service providers. In addition, the Company manages the authoritative directories for the .us and .biz Internet domains, as well as for Common Short Codes, part of the short messaging service, or SMS, relied on by the U.S. wireless industry.

     The Company provides its services from its clearinghouse, which includes unique databases and systems for workflow and transaction processing. These services are used by CSPs to solve a range of their technical and operating requirements, including:

• Addressing. The Company enables CSPs to use critical, shared addressing resources, such as telephone numbers, several Internet domain names, and Common Short Codes.

• Interoperability. The Company enables CSPs to exchange and share critical operating data so that communications originating on one provider’s network can be delivered and received on the network of another CSP. The Company also facilitates order management and work flow processing among CSPs.

• Infrastructure and Other. The Company enables CSPs to more efficiently manage changes in their own networks by centrally managing certain critical data they use to route communications over their own networks.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Unaudited Interim Financial Information

     The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. The results of operations for the three and nine months ended September 30, 2005 are not necessarily indicative of the results that may be expected for the full fiscal year. The consolidated balance sheet as of December 31, 2004 has been derived from the audited consolidated financial statements at that date, but does not include all of the information and notes required by U.S. generally accepted accounting principles for complete financial statements.

     These consolidated financial statements should be read in conjunction with the audited consolidated financial statements as of December 31, 2003 and 2004 and for each of the three years in the period ended December 31, 2004 included in the Company’s prospectus dated June 28, 2005 filed with the Securities and Exchange Commission on June 29, 2005.

     In March 2005, the Company’s Board of Directors approved a registration statement on Form S-1 to be filed with the Securities and Exchange Commission in connection with the initial public offering of the Company’s Class A common stock. In connection with the Company’s initial public offering, the Company’s Board of Directors approved a recapitalization of the Company, which occurred on June 28, 2005 and resulted in (i) the payment of $6.3 million in cash for all accrued and unpaid dividends on all of the outstanding shares of preferred stock, followed by the conversion of all of the outstanding shares of preferred stock into shares of common stock, (ii) the amendment of the Company’s certificate of incorporation to provide for Class A common stock and Class B

7

NEUSTAR, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Unaudited Interim Financial Information (continued)

common stock, (iii) the split of each share of common stock into 1.4 shares and the reclassification of the common stock into shares of Class B common stock, and (iv) the ultimate conversion of all outstanding shares of Class B common stock into shares of Class A common stock at the election of the holder of such shares of Class B common stock (collectively, the “Recapitalization”). Prior to the Company’s initial public offering, holders of 100,000 shares of Series B Voting Convertible Preferred Stock, 28,569,692 shares of Series C Voting Convertible Preferred Stock, and 9,098,525 shares of Series D Voting Convertible Preferred Stock converted their shares into 500,000, 28,569,692, and 9,098,525 shares of the Company’s common stock, respectively, after which the split by means of a reclassification, as described in clauses (ii) and (iii) of the previous sentence, was effected.

     The accompanying consolidated financial statements give retroactive effect to the amendment of the Company’s certificate of incorporation to provide for Class A common stock and Class B common stock and the split of each share of common stock into 1.4 shares and the reclassification of the common stock into shares of Class B common stock, as though these events occurred at the beginning of the earliest period presented.

Use of Estimates

     The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.

Reclassifications

     Certain amounts in the prior periods’ financial statements have been reclassified to conform to the current period presentation.

Revenue Recognition

     The Company provides the North American communications industry with essential clearinghouse services that address the industry’s addressing, interoperability, and infrastructure needs. The Company’s revenue recognition policies are in accordance with Securities and Exchange Commission Staff Accounting Bulletin No. 104, Revenue Recognition.

     The Company provides the following services pursuant to various private commercial and government contracts.

Addressing

     The Company’s addressing services include telephone number administration, implementing the allocation of pooled blocks of telephone numbers, and directory services for Internet domain names and Common Short Codes. The Company generates revenue from its telephone number administration services under two government contracts. Under its contract to serve as the North American Numbering Plan Administrator, the Company earns a fixed annual fee, and recognizes this fee as revenue on a straight-line basis as services are provided. In the event the Company estimates losses on its fixed fee contract, the Company recognizes these losses in the period in which a loss becomes apparent. Under the Company’s contract to serve as the National Pooling Administrator, the Company is reimbursed for costs incurred plus a fixed fee associated with administration of the pooling system. During the construction period completed in March 2002, the Company recognized revenue based on costs incurred. Thereafter, the Company received an award fee associated with its initial delivery of the pooling system, which the

8

NEUSTAR, INC.
NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Revenue Recognition (continued)

Company recognized when it was notified of the amount of the award fee earned. The Company recognizes revenue for administration of the system based on costs incurred plus a pro rata amount of the fixed fee.

     In addition to the administrative functions associated with its role as the National Pooling Administrator, the Company also generates revenue from implementing the allocation of pooled blocks of telephone numbers under its long-term contracts with North American Portability Management, LLC, and the Company recognizes revenue on a per transaction fee basis as the services are performed. For its Internet domain name services, the Company generates revenue for Internet domain registrations, which generally have contract terms between one and ten years. The Company recognizes revenue on a straight-line basis over the lives of the related customer contracts. The Company generates revenue from its Common Short Code services under short-term contracts ranging from three to twelve months, and the Company recognizes revenue on a straight-line basis over the term of the customer contracts.

Interoperability

     The Company’s interoperability services consist primarily of wireline and wireless number portability and order management services. The Company generates revenue from number portability under its long-term contracts with North American Portability Management, LLC and Canadian LNP Consortium, Inc. The Company recognizes revenue on a per transaction fee basis as the services are performed. The Company provides order management services consisting of customer set-up and implementation followed by transaction processing under contracts with terms ranging from one to three years. Customer set-up and implementation is not considered a separate deliverable; accordingly, the fees are deferred and recognized as revenue on a straight-line basis over the term of the contract. Per-transaction fees are recognized as the transactions are processed.

Infrastructure and Other

     The Company’s infrastructure services consist primarily of network management and connection fees. The Company generates revenue from network management services under its long-term contracts with North American Portability Management, LLC. The Company recognizes revenue on a per transaction fee basis as the services are performed. In addition, the Company generates revenue from connection fees and system enhancements under its contracts with North American Portability Management, LLC. The Company recognizes its connection fee revenue as the service is performed. System enhancements are provided under contracts in which the Company is reimbursed for costs incurred plus a fixed fee. Revenue is recognized based on costs incurred plus a pro rata amount of the fee.

Significant Contracts

     The Company provides wireline and wireless number portability, implements the allocation of pooled blocks of telephone numbers and provides network management services pursuant to seven contracts with North American Portability Management, LLC, an industry group that represents all telecommunications service providers in the United States. The Company recognizes revenue under its contracts with North American Portability Management, LLC primarily on a per-transaction basis. The aggregate fees for transactions processed under these contracts are determined by the total number of transactions, and these fees are billed to telecommunications service providers based on their allocable share of the total transaction charges. This allocable share is based on each respective

9

NEUSTAR, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Revenue Recognition (continued)

telecommunications service provider’s share of the aggregate end-user services revenues of all U.S. telecommunications service providers as determined by the Federal Communications Commission (FCC). Under the Company’s contracts, the Company also bills a revenue recovery collections, or RRC, fee of a percentage of monthly billings to its customers, which is available to the Company if any telecommunications service provider fails to pay its allocable share of total transactions charges. In the period in which the RRC fees are billed, the RRC fees are recorded as an accrued expense on the consolidated balance sheet, with a corresponding increase to accounts receivable. If the RRC fee is insufficient for that purpose, these contracts also provide for the recovery of such differences from the remaining telecommunications service providers. On an annual basis, (i) the Company evaluates the RRC fee reserve by comparing cash collections to billings and the RRC percentage is adjusted, and (ii) any excess RRC fee reserve is returned to the telecommunications service providers in accordance with the terms of these contracts.

     The per-transaction pricing under these contracts provides for annual volume discounts (credits) that are earned on all transactions in excess of the pre-determined annual volume threshold. For 2005, the maximum aggregate volume discount (credit) is $7.5 million which is applied via a reduction in per-transaction pricing once the pre-determined annual volume threshold has been surpassed. When the aggregate discount (credit) has been fully satisfied, the per-transaction pricing is restored to the prevailing contractual rate. During August 2005, the Company exceeded the pre-determined annual transaction volume threshold, which resulted in the issuance of $5.0 million of volume credits for the three months ended September 30, 2005.

     For 2003 and 2004, billings continued at the original contractual rate after the annual volume threshold was surpassed. Billings in excess of the discounted pricing were recorded as a customer credit liability on the balance sheet with a corresponding reduction to revenue. In the following year when the credit was applied to invoices rendered, the customer credit liability was reduced with a corresponding credit to accounts receivable. The annual pre-determined volume threshold was surpassed in the fourth quarters of 2003 and 2004 resulting in the reduction of revenue and recognition of a customer credit liability of $6.0 million and $11.9 million, respectively.

     In December 2003, these contracts were amended to extend their expiration date from May 2006 to May 2011, and the per-transaction fee charged to the Company’s customers over the term of the contracts was reduced. As part of the amendments, the Company agreed to retroactively apply the new transaction fee to all 2003 transactions processed and granted credits totaling $16.0 million. These credits are being applied to customer invoices over a 23-month period beginning in January 2004. Additionally, the Company obtained letters of credit totaling $16.0 million in January 2004 to secure these customer credits. As of December 31, 2004 and September 30, 2005, approximately $15.5 million and $3.6 million, respectively, of these customer credits were outstanding. The amount of the Company’s revenue derived under its contracts with North American Portability Management, LLC was $69.2 million, $84.5 million, and $130.0 million for the years ended December 31, 2002, 2003 and 2004, respectively.

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NEUSTAR, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Accounting for Stock-Based Compensation

     Statement of Financial Accounting Standards (SFAS) No. 123, Accounting for Stock-Based Compensation, as amended by SFAS No. 148, Accounting for Stock-Based Compensation—Transition and Disclosure, an amendment of SFAS No. 123 (SFAS No. 123), allows companies to account for stock-based compensation using either the provisions of SFAS No. 123 or the provisions of Accounting Principles Board Opinion No. 25, Accounting for Stock Issued to Employees (APB No. 25), but requires companies that use APB No. 25 to include pro forma disclosure in the notes to the financial statements as if the measurement provisions of SFAS No. 123 had been adopted. The Company accounts for its stock-based employee compensation in accordance with APB No. 25. Stock compensation expense to nonemployees has been determined in accordance with SFAS No. 123 and Emerging Issues Task Force Issue No. 96-18, Accounting for Equity Instruments that are Issued to Other than Employees for Acquiring, or in Connection with Selling Goods or Services (EITF 96-18), and represents the fair value of the consideration received or the fair value of the equity instrument issued, whichever may be more reliably measured. For options that have not reached a measurement date under EITF 96-18, the fair value of the options granted to nonemployees is periodically remeasured at each reporting date.

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NEUSTAR, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Accounting for Stock-Based Compensation (continued)

     The following table illustrates the effect of net income attributable to common stockholders and net income attributable to common stockholders per common share as if the Company had applied the fair value recognition provisions of SFAS No. 123 to stock-based compensation (in thousands, except per share data):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2004			2005			2004			2005
Pro forma basic net income attributable to common stockholders:
Basic net income attributable to common stockholders, as reported	$	6,386		$	13,057		$	33,597		$	37,258
Add: stock-based compensation expense included in reported net income attributable to common stockholders		312			66			1,146			1,535
Deduct: total stock-based compensation expense determined under fair value-based method for all awards		(1,238	)		(1,223	)		(3,138	)		(5,038	)
Pro forma basic net income attributable to common stockholders	$	5,460		$	11,900		$	31,605		$	33,755
Pro forma diluted net income attributable to common stockholders:
Basic net income attributable to common stockholders, as reported	$	6,386		$	13,057		$	33,597		$	37,258
Dividends on and accretion of convertible preferred stock		2,578			—			7,568			4,313
Diluted net income attributable to common stockholders		8,964			13,057			41,165			41,571
Add: stock-based compensation expense included in reported net income attributable to common stockholders		312			66			1,146			1,535
Deduct: total stock-based compensation expense determined under fair value-based method for all awards		(1,238	)		(1,223	)		(3,138	)		(5,038	)
Pro forma diluted net income attributable to common stockholders	$	8,038		$	11,900		$	39,173		$	38,068
Net income attributable to common stockholders per common share:
Basic — as reported	$	1.10		$	0.22		$	6.05		$	1.49
Basic — pro forma	$	0.94		$	0.20		$	5.69		$	1.35
Diluted — as reported	$	0.11		$	0.17		$	0.51		$	0.54
Diluted — pro forma	$	0.10		$	0.15		$	0.48		$	0.50

     The Black-Scholes option-pricing valuation model was developed for use in estimating the fair value of traded options that have no vesting restrictions and are fully transferable. In addition, option valuation models require the input of highly subjective assumptions. Because the Company’s stock options have characteristics significantly different from those of publicly traded options, and because changes in the subjective input assumptions can

12

NEUSTAR, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Accounting for Stock-Based Compensation (continued)

materially affect the fair value estimate, in management’s opinion, the existing models do not necessarily provide a reliable single measure of the fair value of the Company’s employee stock options.

     The effect of applying SFAS No. 123 on pro forma net income attributable to common stockholders as stated above is not necessarily representative of the effects on reported net income attributable to common stockholders for future years due to, among other things, the vesting period of the stock options and the fair value of additional options to be granted in the future years. The fair value of each option is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions for grants issued during the three and nine months ended September 30, 2004 and 2005:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2004			2005			2004			2005
Dividend yield		0.0	%		0.0	%		0.0	%		0.0	%
Expected volatility		67.14	%		55.13	%		67.14	%		62.25	%
Average risk-free interest rate		3.43	%		3.94	%		3.43	%		3.90	%
Expected term		5.0			5.0			5.0			5.0

Basic and Diluted Net Income Attributable to Common Stockholders per Common Share

     Basic net income attributable to common stockholders per common share excludes dilution for potential common stock issuances and is computed by dividing net income attributable to common stockholders by the weighted-average number of common shares outstanding for the period. Diluted net income attributable to common stockholders per common share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock.

13

NEUSTAR, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Basic and Diluted Net Income Attributable to Common Stockholders per Common Share (continued)

     The following table provides a reconciliation of the numerators and denominators used in computing basic and diluted net income attributable to common stockholders per common share (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2004			2005		2004			2005
Basic net income attributable to common stockholders per common share:
Net income	$	8,964		$	13,057	$	41,165		$	41,571
Dividends on and accretion of convertible preferred stock		(2,578	)		—		(7,568	)		(4,313	)
Basic net income attributable to common stockholders	$	6,386		$	13,057	$	33,597		$	37,258
Basic net income attributable to common stockholders per common share	$	1.10		$	0.22	$	6.05		$	1.49
Diluted net income attributable to common stockholders per common share:
Basic net income attributable to common stockholders	$	6,386		$	13,057	$	33,597		$	37,258
Dividends on and accretion of convertible preferred stock		2,578			—		7,568			4,313
Diluted net income attributable to common stockholders	$	8,964		$	13,057	$	41,165		$	41,571
Diluted net income attributable to common stockholders per common share	$	0.11		$	0.17	$	0.51		$	0.54
Weighted average common shares outstanding — basic		5,804			60,351		5,550			25,016
Dilutive effect of:
Stock options for the purchase of common stock		7,426			10,765		7,051			10,094
Conversion of preferred stock and accrued dividends payable into common stock		64,241			—		62,361			35,367
Warrants for the purchase of common stock		6,296			6,346		6,283			6,336
Weighted average common shares outstanding — diluted		83,767			77,462		81,245			76,813

Income Taxes

     Deferred tax assets and liabilities are determined based on temporary differences between the financial reporting bases and the tax bases of assets and liabilities. Deferred tax assets are also recognized for tax net operating loss carryforwards. These deferred tax assets and liabilities are measured using the enacted tax rates and laws that will be in effect when such amounts are expected to reverse or be utilized. The realization of total deferred

14

NEUSTAR, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Income Taxes (continued)

tax assets is contingent upon the generation of future taxable income. Valuation allowances are provided to reduce such deferred tax assets to amounts more likely than not to be ultimately realized.

     Income tax expense includes U.S. federal, state and local income taxes and is based on pre-tax income. The interim period provision for income taxes is based upon the Company’s estimate of its annual effective income tax rate. In determining the estimated annual effective income tax rate, the Company analyzes various factors, including projections of the Company’s annual earnings and taxing jurisdictions in which the earnings will be generated, the impact of state and local income taxes and the ability of the Company to use tax credits and net operating loss carryforwards.

     As of June 30, 2004, the Company generated operating profits for six consecutive quarters and had fully utilized its federal net operating loss carryforwards. As a result of this earnings trend and projected operating results over future years, the Company reversed approximately $20.2 million of its deferred tax asset valuation allowance, having determined that it was more likely than not that these deferred tax assets would be realized. This reversal resulted in the recognition of an income tax benefit of $16.9 million and a reduction of goodwill of $3.3 million. Of the total income tax benefit recognized, approximately $14.5 million relates to a federal deferred tax benefit with the remainder representing the state deferred tax benefit. As a result, income tax expense has been recorded based on pre-tax income for the three and nine months ended September 30, 2005. The effective income tax expense (benefit) rate was 38.8% and 40.0% for the three months ended September 30, 2004 and 2005 and (3.8%) and 39.9% for the nine months ended September 30, 2004 and 2005, respectively.

Comprehensive Net Income

     There were no material differences between net income and comprehensive net income for the three and nine months ended September 30, 2004 and 2005.

Recent Accounting Pronouncements

     On December 16, 2004, the FASB issued SFAS No. 123 (revised 2004), Share-Based Payment (SFAS No. 123(R)), which is a revision of SFAS No. 123. SFAS No. 123(R) supersedes APB No. 25, and amends SFAS No. 95, Statement of Cash Flows. Generally the approach in SFAS No. 123(R) is similar to the approach described in SFAS No. 123. However, SFAS No. 123(R) requires all share-based payments to employees, including grants of employee stock options, to be recognized in the statement of operations based on their fair values. Pro forma disclosure is no longer an alternative upon adopting SFAS No. 123(R). In April 2005, the Securities and Exchange Commission amended the compliance dates for SFAS No. 123(R) from fiscal periods beginning after June 15, 2005 to fiscal years beginning after June 15, 2005.

     SFAS No. 123(R) permits public companies to adopt its requirements using one of two methods:

• A “modified prospective” method in which compensation cost is recognized beginning with the effective date (a) based on the requirements of SFAS No. 123(R) for all share-based payments granted after the effective date and (b) based on the requirements of SFAS No. 123(R) for all awards granted to employees prior to the effective date of SFAS No. 123(R) that remain unvested on the effective date.

15

NEUSTAR, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Recent Accounting Pronouncements (continued)

• A “modified retrospective” method, which includes the requirements of the modified prospective method described above, but also permits entities to restate based on the amounts previously recognized under SFAS No. 123 for purposes of pro forma disclosures either (a) all prior periods presented or (b) prior interim periods of the year of adoption.

      As permitted by SFAS No. 123, the Company currently accounts for share-based payments to employees using APB No. 25’s intrinsic value method and, as such, generally recognizes no compensation expense for employee stock options. Accordingly, the adoption of SFAS No. 123(R)’s fair value method may have a significant impact on the Company’s reported results of operations, although it will have no impact on the Company’s overall financial position. The impact of adoption of SFAS No. 123(R) cannot be predicted at this time because it will depend on levels of share-based payments granted in the future. However, had the Company adopted SFAS No. 123(R) in prior periods, the impact of that standard would have approximated the impact of SFAS No. 123 as described in the disclosure of pro forma net income and net income per share in Note 2 to the Company’s consolidated financial statements. The Company is currently evaluating the impact of the adoption of SFAS No. 123(R) on its results of operations, including the valuation methods and support for the assumptions that underlie the valuation of the awards. The Company plans to adopt SFAS No. 123(R) using the modified prospective method on January 1, 2006.

3. ACQUISITION

     On February 1, 2005, the Company acquired fiducianet, Inc. (Fiducianet) for $2.2 million in cash and the issuance of 35,745 shares of Class B common stock for total purchase consideration of $2.6 million. The acquisition of Fiducianet enables the Company to serve as a single point of contact in managing all day-to-day customer obligations involving subpoenas, court orders and law enforcement agency requests under electronic surveillance laws including the Communications Assistance for Law Enforcement, Patriot and Homeland Security Acts. The acquisition was accounted for as a purchase, and the results of Fiducianet have been included in the accompanying consolidated statements of operations since the date of the acquisition.

     The Company allocated the purchase price principally to customer lists ($2.6 million) and goodwill ($1.1 million). Customer lists are included in intangible assets and are being amortized on a straight-line basis over five years. In accordance with SFAS No. 109, Accounting for Income Taxes, the Company recorded a deferred tax liability of approximately $1.0 million with an offset to goodwill.

4. GOODWILL and INTANGIBLE ASSETS

     Goodwill and other intangible assets consist of the following (in thousands):

	December 31,			September 30,
	2004			2005
				(unaudited)
Goodwill	$	49,453		$	50,566
Other intangible assets:
Customer lists		996			3,566
Acquired technology		2,208			2,208
Total other intangibles		3,204			5,774
Accumulated amortization		(1,954	)		(2,901	)
Other intangible assets, net	$	1,250		$	2,873

     Amortization expense related to other intangible assets, which is included in depreciation and amortization expense, was $263,000 and $274,000 for the three months ended September 30, 2004 and 2005 and $1,096,000 and $947,000 for the nine months ended September 30, 2004 and 2005, respectively. Amortization expense related to intangible assets for the years ended December 31, 2005, 2006, 2007, 2008, 2009 and thereafter is expected to be approximately $1,165,000, $858,000, $726,000, $514,000, $514,000 and $43,000, respectively.

16

NEUSTAR, INC.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS (Continued)

5. STOCKHOLDERS’ (DEFICIT) EQUITY (Continued)

Common Stock

     On February 14, 2005, the Company granted options to employees for the purchase of 341,844 shares of Class B common stock with an exercise price of $10.86, which represented a contemporaneous determination of fair market value of the Company’s Class B common stock by the Company’s board of directors.

     During February 2005, the Company granted fully vested options to nonemployees for the purchase of 22,400 shares of Class B common stock at a weighted average exercise price of $10.86 per share. The Company recognized compensation expense of approximately $180,000. The fair value of these awards was calculated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions: expected life of the award equal to the remaining contractual life; volatility 63.11%; risk-free interest rate, 3.38%; and dividend yield of 0.00% during the option term.

     During March 2005, an employee of the Company changed status to a consultant and, in accordance with the terms of the original option agreement, continued to vest in 26,250 options as of March 29, 2005. As a result, the Company re-measured the fair value of the vested options and recognized compensation expense of approximately $331,000. The fair value of this award was calculated on the modification date using the Black-Scholes option-pricing model with the following weighted average assumptions: expected life of the award equal to the remaining contractual life; volatility 63.11%; risk-free interest rate, 3.43%; and dividend yield of 0.00% during the option term.

     During March 2005, the Company accelerated the vesting of certain options issued to nonemployees. This acceleration enabled the optionholders to immediately vest in approximately 102,000 options, which otherwise would have vested over the options’ original vesting period, generally 48 months. In connection with this acceleration, the Company recorded approximately $1.6 million as compensation expense based on the fair value of the options on the date of acceleration. The fair value of these awards was remeasured on the acceleration date using the Black-Scholes option-pricing model with the following weighted average assumptions: expected life of the award equal to the remaining contractual life; volatility 63.11%; risk-free interest rate, 3.72%; and dividend yield of 0.00% during the option term. As of March 31, 2005, all options granted to nonemployees had vested.

     On June 28, 2005, the Company made an initial public offering (IPO) of 31,625,000 shares of Class A common stock, which included the underwriters’ over-allotment option exercise of 4,125,000 shares of Class A common stock. All the shares of Class A common stock sold in the IPO were sold by selling stockholders and, as such, the Company did not receive any proceeds from the offering. In connection with this transaction, the Company incurred offering costs and other IPO-related expenses of approximately $4.9 million for the nine months ended September 30, 2005, which is recorded in general and administrative expense on the unaudited consolidated statements of operations.

     In connection with the formation of NeuLevel, Inc. (NeuLevel), the Company’s 90%-owned subsidiary, the Company granted the minority interest holder of NeuLevel an option to purchase, within 30 days of completion of the Company’s IPO, up to $20.0 million worth of Class B common stock at a purchase price per share equal to the public offering price. This option expired unexercised.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Forward-Looking Statements

     This quarterly report on Form 10-Q contains forward-looking statements, including, without limitation, statements concerning the conditions in our industry, our operations and economic performance, and our business and growth strategy. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “intends,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential,” “continue” or the negative of these terms or other comparable terminology. These statements relate to future events or our future financial performance and involve known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to differ materially from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. Many of these risks are beyond our ability to control or predict. These forward-looking statements are based on estimates and assumptions by our management that, although we believe to be reasonable, are inherently uncertain and subject to a number of risks and uncertainties. These risks and uncertainties include, without limitation, those described below under the heading “Additional Factors That May Affect Future Results.”

     In light of these risks and uncertainties, the matters referred to in the forward-looking statements contained in this quarterly report may not in fact occur. We undertake no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or otherwise, except as otherwise required by law. Reference is also made to such risks and uncertainties detailed from time to time in our filings with the SEC.

Overview

     We provide the North American communications industry with essential clearinghouse services. We operate the authoritative directories that manage virtually all telephone area codes and numbers, and enable the dynamic routing of calls among thousands of competing communications service providers, or CSPs, in the United States and Canada. All CSPs that offer telecommunications services to the public at large, or telecommunications service providers, such as Verizon Communications Inc., Sprint Corporation, AT&T Corp. and Cingular Wireless LLC, must access our clearinghouse as one of our customers to properly route virtually all of their calls. We also provide clearinghouse services to emerging CSPs, including Internet service providers, cable television operators, and voice over Internet protocol, or VoIP, service providers. In addition, we manage the authoritative directories for the .us and .biz Internet domains, as well as for Common Short Codes, part of the short messaging service relied upon by the U.S. wireless industry.

Our Company

     We were founded to meet the technical and operational challenges of the communications industry when the U.S. government mandated local number portability in 1996. While we remain the provider of the authoritative solution that the industry relies upon to meet this mandate, we have developed a broad range of innovative services that meet an expanded range of customer needs. We provide the communications industry in North America with critical technology services that solve the industry’s addressing, interoperability and infrastructure needs.

     These services are now used by CSPs to manage a range of their technical and operating requirements, including:

• Addressing. We enable CSPs to use critical, shared addressing resources, such as telephone numbers, Internet top-level domain names, and Common Short Codes.

• Interoperability. We enable CSPs to exchange and share critical operating data so that communications originating on one provider’s network can be delivered and received on the network of another CSP. We also facilitate order management and work flow processing among CSPs.

• Infrastructure and Other. We enable CSPs to more efficiently manage changes in their own networks by centrally managing certain critical data they use to route communications over their own networks.

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     We derive a substantial portion of our annual revenue on a transaction basis, most of which is derived from long-term contracts.

     Our costs and expenses consist of cost of revenue, sales and marketing, research and development, general and administrative, and depreciation and amortization.

     Cost of revenue includes all direct materials, direct labor, and those indirect costs related to the generation of revenue such as indirect labor, materials and supplies. Our primary cost of revenue is related to our information technology and systems department, including network costs, data center maintenance, database management, and data processing costs, as well as personnel costs associated with service implementation, product maintenance, customer deployment and customer care. Cost of revenue also includes costs relating to developing modifications and enhancements of our existing technology and services.

     Sales and marketing expense consists of personnel costs, advertising costs and relationship marketing costs. This expense includes salaries, sales commissions, sales operations and other personnel-related expense, travel and related expense, trade shows, costs of computer and communications equipment and support services, facilities costs, consulting fees and costs of marketing programs, such as Internet and print. Included in these classifications are product branding and packaging, market analysis and forecasting, stock-based compensation and customer relationship management.

     Research and development expense consists primarily of costs related to personnel, including salaries and other personnel-related expense, consulting fees and the costs of facilities, computer and support services used in service and technology development.

     General and administrative expense consists primarily of salaries and other personnel-related expense for our executive, administrative, legal, finance, and human resources functions, facilities, management information systems, support services, professional services fees, certain audit, tax and license fees, stock-based compensation and bad debt expense.

     Depreciation and amortization relates primarily to our property and equipment and includes our network infrastructure and facilities related to our services and the amortization of identifiable intangibles.

Critical Accounting Policies and Estimates

     The discussion and analysis of our financial condition and results of operations are based on our consolidated financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles, or U.S. GAAP. The preparation of these financial statements in accordance with U.S. GAAP requires us to utilize accounting policies and make certain estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingencies as of the date of the financial statements and the reported amounts of revenue and expense during a fiscal period. The Securities and Exchange Commission considers an accounting policy to be critical if it is important to a company’s financial condition and results of operations, and if it requires significant judgment and estimates on the part of management in its application. We have discussed the selection and development of the critical accounting policies with the audit committee of our board of directors, and the audit committee has reviewed our related disclosures in this report. Although we believe that our judgments and estimates are appropriate and correct, actual results may differ from those estimates.

     We believe the following to be our critical accounting policies because they are important to the portrayal of our financial condition and results of operations and they require critical management judgments and estimates about matters that are uncertain. If actual results or events differ materially from those contemplated by us in making these estimates, our reported financial condition and results of operation for future periods could be materially affected. See “Additional Factors That May Affect Future Results” for certain matters that may bear on our future results of operations.

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     Revenue Recognition

     Our revenue recognition policies are in accordance with Securities and Exchange Commission Staff Accounting Bulletin No. 104, Revenue Recognition. We provide the following services pursuant to various private commercial and government contracts.

     Addressing. Our addressing services include telephone number administration, implementing the allocation of pooled blocks of telephone numbers, and directory services for Internet domain names and Common Short Codes. We generate revenue from our telephone number administration services under two government contracts. Under our contract to serve as the North American Numbering Plan Administrator, we earn a fixed annual fee, and we recognize this fee as revenue on a straight-line basis as services are provided. In the event we estimate losses on our fixed fee contract, we recognize these losses in the period in which a loss becomes apparent. Under our contract to serve as the National Pooling Administrator, we are reimbursed for costs incurred plus a fixed fee associated with administration of the pooling system. During the construction period completed in March 2002, we recognized revenue based on costs incurred. Thereafter, we received an award fee associated with our initial delivery of the pooling system, which we recognized when we were notified of the amount of the award fee earned. We currently recognize revenue for administration of the system based on costs incurred plus a pro rata amount of the fixed fee.

     In addition to the administrative functions associated with our role as the National Pooling Administrator, we also generate revenue from implementing the allocation of pooled blocks of telephone numbers under our long-term contracts with North American Portability Management, LLC, and we recognize revenue on a per transaction fee basis as the services are performed. For our Internet domain name services, we generate revenue for Internet domain name registrations, which generally have contract terms between one and ten years. We recognize revenue on a straight-line basis over the lives of the related customer contracts. We generate revenues from our Common Short Code services under short-term contracts ranging from three to twelve months, and we recognize revenue on a straight-line basis over the term of the customer contracts.

     Interoperability. Our interoperability services consist primarily of wireline and wireless number portability and order management services. We generate revenue from number portability under our long-term contracts with North American Portability Management, LLC and Canadian LNP Consortium, Inc. We recognize revenue on a per transaction fee basis as the services are performed. We provide order management services consisting of customer set-up and implementation followed by transaction processing under contracts with terms ranging from one to three years. Customer set-up and implementation is not considered a separate deliverable; accordingly, the fees are deferred and recognized as revenue on a straight-line basis over the term of the contract. Per-transaction fees are recognized as the transactions are processed.

     Infrastructure and Other. Our infrastructure services consist primarily of network management and connection services. We generate revenue from network management services under our long-term contracts with North American Portability Management, LLC. We recognize revenue on a per transaction fee basis as the services are performed. In addition, we generate revenue from connection fees and system enhancements under our contracts with North American Portability Management, LLC. We recognize our connection fee revenue as the service is performed. System enhancements are provided under contracts in which we are reimbursed for costs incurred plus a fixed fee. Revenue is recognized based on costs incurred plus a pro rata amount of the fee.

     Significant Contracts

     We provide wireline and wireless number portability, implement the allocation of pooled blocks of telephone numbers and provide network management services pursuant to seven contracts with North American Portability Management, LLC, an industry group that represents all telecommunications service providers in the United States. We recognize revenue under our contracts with North American Portability Management, LLC primarily on a per-transaction basis. The aggregate fees for transactions processed under these contracts are determined by the total number of transactions, and these fees are billed to telecommunications service providers based on their allocable share of the total transaction charges. This allocable share is based on each respective telecommunications service provider’s share of the aggregate end-user services revenues of all U.S. telecommunications service providers as determined by the Federal Communications Commission, or FCC. On November 4, 2005, Bellsouth Corporation filed a petition seeking changes in the way our customers are billed for services provided by us under our contracts with North American Portability Management LLC. The FCC has not indicated whether it will take any action based on this petition, and any such response would likely be adopted only after a formal rulemaking process. We do not believe that this proposed change to the manner in which we bill for services under these contracts would have a material impact on our customers’ demand for these services. Under our contracts, we also bill a revenue recovery collections, or RRC, fee of a percentage of monthly billings to our customers, which is available to us if

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any telecommunications service provider fails to pay its allocable share of total transactions charges. If the RRC fee is insufficient for that purpose, these contracts also provide for the recovery of such differences from the remaining telecommunications service providers.

     The per-transaction pricing under these contracts provides for annual volume discounts (credits) that are earned on all transactions in excess of the pre-determined annual volume threshold. For 2005, the maximum aggregate volume discount (credit) is $7.5 million, which is applied via a reduction in per-transaction pricing once the pre-determined annual volume threshold has been surpassed. When the aggregate discount (credit) has been fully satisfied, the per-transaction pricing is restored to the prevailing contractual rate. During August 2005, we exceeded the pre-determined annual transaction volume threshold, which resulted in the issuance of $5.0 million of volume credits for the three months ended September 30, 2005. During the fourth quarter of 2005, we anticipate that we will issue the remaining $2.5 million of these volume-based credits.

     For 2003 and 2004, billings continued at the original contractual rate after the annual volume threshold was surpassed. Billings in excess of the discounted pricing was recorded as a customer credit liability on the balance sheet with a corresponding reduction to revenue. In the following year when the credit was applied to invoices rendered, the customer credit liability was reduced with a corresponding credit to accounts receivable. The annual pre-determined volume threshold was surpassed in the fourth quarters of 2003 and 2004 resulting in the reduction of revenue and recognition of a customer credit liability of $6.0 million and $11.9 million, respectively.

     In December 2003, these contracts were amended to extend their expiration date from May 2006 to May 2011, and the per-transaction fee charged to our customers over the term of the contracts was reduced. As part of the amendments, we agreed to retroactively apply the new transaction fee to all 2003 transactions processed and granted credits totaling $16.0 million. These credits are being applied to customer invoices over a 23-month period beginning in January 2004. Additionally, we obtained letters of credit totaling $16.0 million in January 2004 to secure a portion of these customer credits. As of December 31, 2004 and September 30, 2005, approximately $15.5 million and $3.6 million, respectively, of these customer credits were outstanding. The amount of our revenue derived under our contracts with North American Portability Management, LLC was $69.2 million, $84.5 million, and $130.0 million for the years ended December 31, 2002, 2003 and 2004, respectively.

     Service Level Standards

     Pursuant to certain of our private commercial contracts, we are subject to service level standards and to corresponding penalties for failure to meet those standards. We record a provision for these performance-related penalties when incurred with a corresponding reduction of our revenue.

     For more information regarding how we recognize revenue for each of our service categories, please see the discussion above under “—Revenue Recognition.”

     Valuation of Goodwill and Intangible Assets

     Previous acquisitions resulted in the recording of goodwill, which represents the excess of the purchase price over the fair value of assets acquired, as well as other definite-lived intangible assets. Goodwill is not subject to amortization; instead it is subject to new impairment testing criteria. Other acquired definite-lived intangible assets are being amortized over their estimated useful lives, although those with indefinite lives are not to be amortized but are tested at least annually for impairment, using a lower of cost or fair value approach. We test for impairment on an annual basis or on an interim basis if circumstances change that would indicate the possibility of impairment. The impairment review may require an analysis of future projections and assumptions about our operating performance. If such a review indicates that the assets are impaired, an expense would be recorded for the amount of the impairment, and the corresponding impaired assets would be reduced in carrying value.

     Impairment of Long-Lived Assets

     In accordance with Statement of Financial Accounting Standards No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets, a review of long-lived assets for impairment is performed when events or changes in circumstances indicate the carrying value of such assets may not be recoverable. If an indication of impairment is present, we compare the estimated undiscounted future cash flows to be generated by the asset to its carrying

21

amount. If the undiscounted future cash flows are less than the carrying amount of the asset, we record an impairment loss equal to the excess of the asset’s carrying amount over its fair value. The fair value is determined based on valuation techniques such as a comparison to fair values of similar assets or using a discounted cash flow analysis.

     Accounts Receivable, Revenue Recovery Collections, and Allowance for Doubtful Accounts

     Accounts receivable are recorded at the invoiced amount and do not bear interest. In accordance with our contracts with North American Portability Management, LLC, we bill a RRC fee of a percentage of monthly billings to our customers. The aggregate RRC fees collected may be used to offset uncollectible receivables from an individual customer. The RRC fees are recorded as an accrued liability when collected. For the period January 1, 2002 through June 30, 2004, this fee was 3% of monthly billings. On July 1, 2004, the RRC fee was reduced to 2%. On July 1, 2005, the RRC fee was reduced to 1%. Any accrued RRC fees in excess of uncollectible receivables are paid back to the customers annually on a pro rata basis. RRC fees of $4.3 million and $2.0 million are included in accrued expenses as of December 31, 2004 and September 30, 2005, respectively. All other receivables related to services not covered by the RRC fees are evaluated and, if deemed not collectible, are appropriately reserved.

     Deferred Income Taxes

     We recognize deferred tax assets and liabilities based on temporary differences between the financial reporting bases and the tax bases of assets and liabilities. These deferred tax assets and liabilities are measured using the enacted tax rates and laws that will be in effect when such amounts are expected to reverse or be utilized. The realization of deferred tax assets is contingent upon the generation of future taxable income. When appropriate, we recognize a valuation allowance to reduce such deferred tax assets to amounts that are more likely than not to be ultimately realized. The calculation of deferred tax assets (including valuation allowances) and liabilities requires us to apply significant judgment related to such factors as the application of complex tax laws, changes in tax laws and our future operations. We review our deferred tax assets on a quarterly basis to determine if a valuation allowance is required based upon these factors. Changes in our assessment of the need for a valuation allowance could give rise to a change in such allowance, potentially resulting in additional expense or benefit in the period of change.

     Stock-Based Compensation

     We account for employee stock-based compensation in accordance with the provisions of Accounting Principles Board Opinion No. 25, Accounting for Stock Issued to Employees (APB No. 25) and related interpretations, which require us to recognize compensation cost for the excess of the fair value of the stock at the grant date over the exercise price, if any. An alternative method of accounting would apply the principles of SFAS No. 123, Accounting for Stock-Based Compensation (SFAS No. 123), which require the fair value of the stock option to be recognized at the date of grant and amortized as compensation expense over the stock option’s vesting period. No stock-based employee compensation cost for stock options is reflected in net income, as all options granted under the plans had an exercise price equal to the market value of the underlying common stock on the date of grant. Stock-based compensation for non-employees is accounted for using the fair value-based method in accordance with SFAS No. 123 and Emerging Issues Task Force Issue No. 96-18, Accounting for Equity Instruments that are Issued to Other than Employees for Acquiring, or in Connection with Selling Goods or Services (EITF 96-18). See the discussion under “—Recent Accounting Pronouncements” below.

     Acquisitions

     On February 1, 2005, we acquired fiducianet, Inc. for $2.2 million in cash and the issuance of 35,745 shares of our Class B common stock for total purchase consideration of $2.6 million. The acquisition of fiducianet enables us to serve as a single point of contact in managing all day-to-day customer obligations involving subpoenas, court orders and law enforcement agency requests under electronic surveillance laws including the Communications Assistance for Law Enforcement, Patriot and Homeland Security Acts.

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Current Trends Affecting Our Results of Operations

     We have experienced increased demand for our clearinghouse services, which has been driven by market trends such as network expansion, the implementation of new technologies, subscriber growth, competitive churn, network changes and consolidations.

     Wireless subscriber growth, new wireless applications, and wireless competition have driven increased demand for all of our clearinghouse services. Additionally, as wireless service providers upgrade their networks and technology to enable high-speed service, we anticipate that they will increasingly rely on our infrastructure services and that, as a result, wireless-related transactions will remain a major contributor to our addressing and interoperability transaction volume growth.

     Advancements in the communications industry, such as changes from time division multiplexing, or TDM, to global system for mobile, or GSM, have driven increased infrastructure transactions in our clearinghouse. As the industry migrates towards next-generation technologies and applications, we anticipate that demand for our infrastructure services will increase.

     As the communications industry has changed to meet consumer demands and new technological advancements, consolidation among industry participants has increased. Consolidation requires the integration of disparate systems and networks, which has driven increased demand for our addressing, interoperability and infrastructure services. We anticipate that future consolidations will continue to drive growth in our transaction volumes.

     During the first three quarters of 2005, addressing transactions also increased due to the emergence of IP service providers. In particular, VoIP service providers are rapidly expanding their operations and experiencing an increased need for access to inventories of telephone numbers, which has driven demand for our addressing services. We expect significant growth in the number of addressing transactions in the remainder of 2005 and 2006 as IP service providers continue to develop an inventory of telephone number resources.

     To support the growth driven by the favorable industry trends mentioned above, we continue to look for opportunities to improve our operating efficiencies. In 2004, we initiated several programs to improve operating efficiencies, such as the utilization of offshore technical resources for systems engineering, implementation of new hardware and software technology in our clearinghouse, and management of process improvement teams. We believe that these programs will continue to provide future benefits and position us to support revenue growth.

     As a public company, we have experienced, and will continue to experience, increases in certain general and administrative expenses to comply with the laws and regulations applicable to public companies. These laws and regulations include the provisions of the Sarbanes-Oxley Act of 2002 and the rules of the Securities and Exchange Commission and the New York Stock Exchange. To comply with the corporate governance and operating requirements of being a public company, we will incur increases in such items as personnel costs, professional services fees, fees for independent directors and the cost of directors and officers liability insurance. We believe that these costs will approximate $3.0 to $3.5 million annually.

     In 2003 and 2004, we were able to utilize net operating loss carryforwards and deferred tax benefits from previous years to offset taxable income and income tax expense related to U.S. federal income taxes. These carryforwards and deferrals were exhausted in 2004. In 2005 and future years, we expect our profits to be subject to U.S. federal income taxes at the statutory rates.

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Consolidated Results of Operations

     Three Months Ended September 30, 2004 Compared to Three Months Ended September 30, 2005

     The following table presents an overview of our results of operations for the three months ended September 30, 2004 and 2005.

	Three Months Ended						Three Months Ended
	September 30,						September 30,
	2004			2005			2004 vs. 2005
	$			$			$ Change			% Change
				(in thousands, except per share data)
Revenue:
Addressing	$	14,176		$	19,190		$	5,014			35.4	%
Interoperability		9,314			12,242			2,928			31.4
Infrastructure and other		21,739			27,528			5,789			26.6
Total revenue		45,229			58,960			13,731			30.4
Operating expense:
Cost of revenue (excluding depreciation and amortization shown separately below)		12,874			17,124			4,250			33.0
Sales and marketing		6,050			7,186			1,136			18.8
Research and development		1,938			3,092			1,154			59.5
General and administrative		5,310			5,626			316			6.0
Depreciation and amortization		4,263			4,223			(40	)		(0.9	)
Restructuring charges		—			17			17			—
		30,435			37,268			6,833			22.5
Income from operations		14,794			21,692			6,898			46.6
Other (expense) income:
Interest expense		(527	)		(503	)		24			4.6
Interest income		380			559			179			47.1
Income before income taxes		14,647			21,748			7,101			48.5
Provision for income taxes		5,683			8,691			3,008			52.9
Net income		8,964			13,057			4,093			45.7
Dividends on and accretion of preferred stock		(2,578	)		—			2,578			—
Net income attributable to common stockholders	$	6,386		$	13,057			6,671			104.5	%
Net income attributable to common stockholders per common share:
Basic	$	1.10		$	0.22
Diluted	$	0.11		$	0.17
Weighted average common shares outstanding:
Basic		5,804			60,351
Diluted		83,767			77,462

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     Revenue

     Total revenue. Total revenue increased $13.7 million due to increases in addressing, interoperability and infrastructure transactions. Revenue from increased transactions was partially offset by annual volume credits under our contracts with North American Portability Management, LLC based on our exceeding pre-determined annual transaction volume thresholds under those contracts. The impact of this volume credit was a $5.0 million reduction of revenue for the three months ended September 30, 2005. In 2004, the pre-determined annual transaction volume threshold was not met until the fourth quarter.

     Addressing. Addressing revenue increased $5.0 million due to the growth in the number of wireless subscribers, the increase in new communications services being offered by our customers and the continued expansion of carrier networks. Of this amount, revenue from pooling transactions increased $2.9 million, primarily as service providers continued to build inventories of telephone numbers in multiple area codes and rate centers to be able to offer them to Internet and wireless telephony users. In addition, Common Short Codes revenue increased $1.6 million due to an increase in the number of subscribers for Common Short Codes, as well as an increase in the number of service providers that carried Common Short Codes across their networks. Revenue from our domain name services increased $0.5 million due in large part to the increased number of subscribers.

     Interoperability. Interoperability revenue increased $2.9 million due to an increase in wireline and wireless competition and the associated movement of end users from one CSP to another, carrier consolidation, and broader usage of our expanding service offerings such as enhanced order management services for wireless data and Internet telephony providers. Specifically, revenue from number portability transactions increased $1.6 million, and revenue from our order management services increased $1.2 million.

     Infrastructure and other. Infrastructure and other revenue increased $5.8 million due to an increase in the demand for our network management services. Of this amount, $3.8 million was attributable to customers making changes to their networks that required actions such as disconnects and modifications to network elements. We believe these changes were driven largely by trends in the industry, including the implementation of new technologies by our customers, wireless technology upgrades and network optimization. Connection fees and other revenues increased $2.0 million due in part to revenue related to one-time functionality improvements that our customers requested.

     Expense

     Cost of revenue. Cost of revenue increased $4.3 million due to growth in personnel, contractor costs to support higher transaction volumes and royalties related to our Common Short Codes service. Of this amount, personnel and employee related expense increased $1.7 million due to increased personnel to support our customer deployment group, software engineering group and operations group. Contractor costs increased $1.1 million for software maintenance activities and managing industry changes to our clearinghouse. Additionally, cost of revenue increased by $1.4 million due to royalty expenses related to Common Short Code services and revenue share cost associated with our Internet domain names and registry gateway services. Cost of revenue as a percentage of revenue increased to 29.0% in the three months ended September 30, 2005, as compared to 28.5% for the three months ended September 30, 2004.

     Sales and marketing. Sales and marketing expense increased $1.1 million due to headcount additions to our sales and marketing team to focus on branding and product launches. Of this amount, personnel and employee related expense increased $1.0 million, and costs related to industry events increased $0.3 million. These increases were offset by a $0.3 million reduction in consultant and professional fees and advertising expense associated with trade events. Sales and marketing expense as a percentage of revenue decreased to 12.2% in the three months ended September 30, 2005, as compared to 13.4% for the three months ended September 30, 2004.

     Research and development. Research and development expense increased $1.2 million due to the development of Internet telephony solutions to enhance our service offerings. Personnel and employee related costs increased $0.5 million due to increased headcount. In addition, fees for consultants to augment our internal research and development team increased $0.5 million. Research and development expense as a percentage of revenue increased

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to 5.2% in the three months ended September 30, 2005, as compared to 4.3% for the three months ended September 30, 2004.

     General and administrative. General and administrative expense increased $0.3 million primarily due to costs incurred to support business growth and costs incurred in being a public company. General and administrative expense as a percentage of revenue decreased to 9.5% in the three months ended September 30, 2005, as compared to 11.7% for the three months ended September 30, 2004.

     Depreciation and amortization. Depreciation and amortization expense decreased $40,000 due to the expiration of certain capital leases. Depreciation and amortization expense as a percentage of revenue decreased to 7.2% for the three months ended September 30, 2005, as compared to 9.4% for the three months ended September 30, 2004.

     Restructuring charges. During the three months ended September 30, 2005, we recorded a restructuring charge of $17,000 for the closure of our facility in Oakland, CA, which was completed on October 31, 2005. There was no similar expense for the three months ended September 30, 2004.

     Interest expense. Interest expense remained relatively consistent during the three months ended September 30, 2005 as compared to the three months ended September 30, 2004. Interest expense as a percentage of revenue decreased to 0.9% in the three months ended September 30, 2005, as compared to 1.2% for the three months ended September 30, 2004.

     Interest income. Interest income increased $0.2 million due to higher average cash balances. Interest income as a percentage of revenue increased to 0.9% in the three months ended September 30, 2005, as compared to 0.8% for the three months ended September 30, 2004.

     Provision for income taxes. Income tax provision increased $3.0 million to $8.7 million to reflect the expected 2005 effective tax rate. Provision for income taxes as a percentage of revenue increased to 14.7% for the three months ended September 30, 2005 compared to 12.6% for the three months ended September 30, 2004.

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     Nine Months Ended September 30, 2004 Compared to the Nine Months Ended September 30, 2005

     The following table presents an overview of our results of operations for the nine months ended September 30, 2004 and 2005.

	Nine Months Ended						Nine Months Ended
	September 30,						September 30,
	2004			2005			2004 vs. 2005
	$			$			$ Change			% Change
				(in thousands, except per share data)
Revenue:
Addressing	$	37,982		$	57,765		$	19,783			52.1	%
Interoperability		25,403			38,819			13,416			52.8
Infrastructure and other		60,168			82,464			22,296			37.1
Total revenue:		123,553			179,048			55,495			44.9
Operating expense:
Cost of revenue (excluding depreciation and amortization shown separately below)		35,410			46,154			10,744			30.3
Sales and marketing		15,032			21,775			6,743			44.9
Research and development		5,409			8,540			3,131			57.9
General and administrative		13,781			22,045			8,264			60.0
Depreciation and amortization		13,487			11,740			(1,747	)		(13.0	)
Restructuring recoveries		—			(389	)		(389	)		—
		83,119			109,865			26,746			32.2
Income from operations		40,434			69,183			28,749			71.1
Other (expense) income:
Interest expense		(1,873	)		(1,715	)		158			8.4
Interest income		1,100			1,756			656			59.6
Income before income taxes		39,661			69,224			29,563			74.5
(Benefit from) provision for income taxes		(1,504	)		27,653			29,157			(1938.6	)
Net income		41,165			41,571			406			1.0
Dividends on and accretion of preferred stock		(7,568	)		(4,313	)		3,255			43.0
Net income attributable to common stockholders	$	33,597		$	37,258		$	3,661			10.9	%
Net income attributable to common stockholders per common share:
Basic	$	6.05		$	1.49
Diluted	$	0.51		$	0.54
Weighted average common shares outstanding:
Basic		5,550			25,016
Diluted		81,245			76,813

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     Revenue

     Total revenue. Total revenue increased $55.5 million due to increases in addressing, interoperability and infrastructure transactions. Revenue from increased transactions was partially offset by annual volume credits under our contracts with North American Portability Management, LLC based on our exceeding pre-determined annual transaction volume thresholds under those contracts. The impact of this volume credit was a $5.0 million reduction of revenue for the nine months ended September 30, 2005. In 2004, the pre-determined annual transaction volume threshold was not met until the fourth quarter.

     Addressing. Addressing revenue increased $19.8 million due to the growth in the number of wireless subscribers, the increase in new communications services being offered by our customers, the continued consolidation of industry participants and the continued expansion of carrier networks. Of this amount, revenue from pooling transactions increased $15.1 million, primarily as service providers continued to build inventories of telephone numbers in multiple area codes and rate centers to be able to offer them to Internet and wireless telephony users. Carrier consolidation also required the use of our pooling services to reallocate pooled blocks of telephone numbers to new network addresses within consolidated networks. In addition, Common Short Codes revenue increased $3.8 million due to an increase in the number of subscribers for Common Short Codes, as well as an increase in the number of service providers that carried Common Short Codes across their networks. Revenue from our domain name services increased $1.2 million due in large part to the increased number of subscribers. These increases were offset by a reduction of $0.4 million in telephone number administration fees due to reduced activity under our contract to serve as the North American Numbering Plan Administrator for the nine months ended September 30, 2005.

     Interoperability. Interoperability revenue increased $13.4 million due to an increase in wireline and wireless competition and the associated movement of end users from one CSP to another, carrier consolidation, and broader usage of our expanding service offerings such as enhanced order management services for wireless data and Internet telephony providers. Specifically, revenue from number portability transactions increased $8.0 million, and revenue from our order management services increased $5.2 million.

     Infrastructure and other. Infrastructure and other revenue increased $22.3 million due primarily to an increase in the demand for our network management services. Of this amount, $17.8 million was attributable to customers making changes to their networks that required actions such as disconnects and modifications to network elements. We believe these changes were driven largely by trends in the industry, including the implementation of new technologies by our customers, wireless technology upgrades and network optimization. Connection fees and other revenues increased $4.5 million due in part to revenue related to one-time functionality improvements that our customers requested.

     Expense

     Cost of revenue. Cost of revenue increased $10.7 million due to growth in personnel and contractor costs to support higher transaction volumes. Of this amount, personnel and employee related expense increased $6.3 million due to increased personnel to support our customer deployment group, software engineering group and operations group. Contractor costs increased $3.0 million for software maintenance activities and managing industry changes to our clearinghouse. Additionally, cost of revenue increased by $2.3 million due to royalty expense related to Common Short Code services and revenue share cost associated with our Internet domain names and registry gateway services. These increases were offset by a $0.6 million reduction in facilities expense associated with the consolidation of our Oakland facilities. Cost of revenue as a percentage of revenue decreased to 25.8% in the nine months ended September 30, 2005, as compared to 28.7% for the nine months ended September 30, 2004.

     Sales and marketing. Sales and marketing expense increased $6.7 million due in large part to headcount additions to our sales and marketing team to focus on branding and product launches and the recording of stock-based compensation expense for non-employee option grants. Of this amount, personnel and employee related expenses, including stock-based compensation expense, increased $5.3 million due primarily to the acceleration of vesting of various non-employee stock options. In addition, costs related to industry events, advertising and travel increased $0.9 million. Sales and marketing expense as a percentage of revenue remained constant at 12.2% in the nine months ended September 30, 2005, as compared to the nine months ended September 30, 2004.

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     Research and development. Research and development expense increased $3.1 million due to the development of Internet telephony solutions to enhance our service offerings. Personnel and employee related costs increased $2.1 million due to increased headcount. In addition, fees and related expenses for consultants to augment our internal research and development team increased $0.5 million. Research and development expense as a percentage of revenue increased to 4.8% in the nine months ended September 30, 2005, as compared to 4.4% for the nine months ended September 30, 2004.

     General and administrative. General and administrative expense increased $8.3 million primarily due to costs incurred to support business growth and costs incurred in preparation for becoming a public company, as well as recording stock-based compensation expense for non-employee stock option grants. Of this amount, personnel and employee related expense, including stock-based compensation expense, increased $2.0 million due primarily to the acceleration of vesting of various non-employee stock options, and legal and accounting fees increased $1.0 million. In addition, we recorded $4.9 million of offering costs related to our initial public offering and other IPO-related expense, which included legal, accounting and consulting fees. General and administrative expense as a percentage of revenue increased to 12.3% in the nine months ended September 30, 2005, as compared to 11.2% for the nine months ended September 30, 2004.

     Depreciation and amortization. Depreciation and amortization expense decreased $1.7 million due to the expiration of certain capital leases and a change in the useful life estimate in June 2004 of certain acquired intangibles. Depreciation and amortization expense as a percentage of revenue decreased to 6.6% for the nine months ended September 30, 2005, as compared to 10.9% for the nine months ended September 30, 2004.

     Restructuring recoveries. During the nine months ended September 30, 2005, we recorded a net restructuring recovery of $0.4 million, which consisted of a restructuring charge of $0.3 million for the closure of our facility in Oakland, CA which was completed on October 31, 2005, and a restructuring recovery of $0.7 million after entering into a sublease for our leased property in Chicago because that sublease had more favorable rates than originally assumed when we recorded a restructuring liability in 2002 for the closure of excess facilities.

     Interest expense. Interest expense decreased $0.2 million as a result of lower interest charges on outstanding notes as principal was reduced, as well as a decrease in the number of capital leases. Interest expense as a percentage of revenue decreased to 1.0% in the nine months ended September 30, 2005, as compared to 1.5% for the nine months ended September 30, 2004.

     Interest income. Interest income increased $0.7 million due to higher average cash balances. Interest income as a percentage of revenue increased to 1.0% in the nine months ended September 30, 2005, as compared to 0.9% for the nine months ended September 30, 2004.

     (Benefit from) provision for income taxes. We recorded a provision for income taxes of $27.7 million for the nine months ended September 30, 2005 to reflect the expected 2005 effective tax rate, as compared to a benefit from income taxes of $1.5 million for the nine months ended September 30, 2004. As of June 30, 2004, we had generated operating profits for six consecutive quarters. As a result of this earnings trend, we determined that it was more likely than not that we would realize our deferred tax assets and reversed approximately $20.2 million of our deferred tax asset valuation allowance. The reversal resulted in recognition of an income tax benefit of $16.9 million and a reduction of goodwill of $3.3 million. The benefit was offset by current income tax expense of $6.1 million and deferred income taxes of $9.4 million, resulting in a net income tax benefit of $1.5 million. Provision for income taxes as a percentage of revenue increased to 15.4% for the nine months ended September 30, 2005 compared to (1.2%) for the nine months ended September 30, 2004.

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Liquidity and Capital Resources

     Our principal source of liquidity has been cash provided by operations. Our principal uses of cash have been to fund facility expansions, capital expenditures, acquisitions, working capital, dividend payouts on preferred stock, and debt service requirements. We anticipate that our principal uses of cash in the future will be facility expansion, capital expenditures, acquisitions and working capital.

     Total cash and cash equivalents and short-term investments were $84.3 million at September 30, 2005, compared to $81.2 million at June 30, 2005. As of September 30, 2005, we had $4.3 million available under the revolving loan commitment of our bank credit facility, subject to the terms and conditions of that facility.

     We believe that our existing cash and cash equivalents, short-term investments and cash from operations will be sufficient to fund our operations for the next twelve months.

     As part of the recapitalization effected in connection with our initial public offering, we paid accrued and unpaid dividends on our preferred stock of approximately $6.3 million. On June 28, 2005, all of the preferred stock was converted into common stock, and no dividends are currently accruing. We have paid or expect to pay offering costs, excluding underwriting discounts and commissions, and other IPO-related expenses totaling $4.9 million in connection with our initial public offering.

Discussion of Cash Flows

     Cash flows from operations

     Net cash provided by operating activities for the nine months ended September 30, 2005 was $41.9 million, as compared to $45.0 million for the nine months ended September 30, 2004. This $3.1 million decrease in net cash provided by operating activities was principally the result of a net decrease in changes in operating assets and liabilities of approximately $11.0 million. This decrease was offset by a net increase in non-cash charges of approximately $7.5 million, which was predominantly due to a $9.3 million increase in deferred income taxes.

     Cash flows from investing

     Net cash used in investing activities was $36.7 million for the nine months ended September 30, 2005, compared to $45.9 million for the nine months ended September 30, 2004. This $9.2 million decrease in net cash used in investing activities was principally due to a reduction in purchases of short-term investments of $13.3 million offset by an increase in purchases of property and equipment of $1.9 million and the purchase of a business for $2.2 million.

     Cash flows from financing

     Net cash used in financing activities was $8.2 million for the nine months ended September 30, 2005, compared to $22.7 million for the nine months ended September 30, 2004. This $14.5 million decrease in net cash used in financing activities was principally the result of a decrease of $12.4 million for required letters of credit relating to our December 2003 contract amendments with North American Portability Management, LLC, a $4.8 million decrease in repayments of notes payable and capital leases, and a $2.5 million increase in proceeds received from the exercise of common stock options offset by the $6.3 million payment of preferred stock dividends.

Recent Accounting Pronouncements

     On December 16, 2004, the FASB issued Statement of Financial Accounting Standards No. 123 (revised 2004), Share-Based Payment (SFAS No. 123(R)), which is a revision of SFAS No. 123. SFAS No. 123(R) supersedes APB No. 25, and amends SFAS No. 95, Statement of Cash Flows. Generally the approach in SFAS No. 123(R) is similar to the approach described in SFAS No. 123. However, SFAS No. 123(R) requires all share-based payments to employees, including grants of employee stock options, to be recognized in the statement of operations based on their fair values. Pro forma disclosure is no longer an alternative upon adopting SFAS No. 123(R). In April 2005, the Securities and Exchange Commission amended the compliance dates for SFAS No. 123(R) from fiscal periods

30

beginning after June 15, 2005 to fiscal years beginning after June 15, 2005.

     SFAS No. 123(R) permits public companies to adopt its requirements using one of two methods:

• A “modified prospective” method in which compensation cost is recognized beginning with the effective date (a) based on the requirements of SFAS No. 123(R) for all share-based payments granted after the effective date and (b) based on the requirements of SFAS No. 123(R) for all awards granted to employees prior to the effective date of SFAS No. 123(R) that remain unvested on the effective date.

• A “modified retrospective” method, which includes the requirements of the modified prospective method described above, but also permits entities to restate based on the amounts previously recognized under SFAS No. 123 for purposes of pro forma disclosures either (a) all prior periods presented or (b) prior interim periods of the year of adoption.

     As permitted by SFAS No. 123, we currently account for share-based payments to employees using APB No. 25’s intrinsic value method and, as such, generally recognize no compensation expense for employee stock options. Accordingly, the adoption of SFAS No. 123(R)’s fair-value method may have a significant impact on our reported results of operations, although it will have no impact on our overall financial position. The impact of adoption of SFAS No. 123(R) cannot be predicted at this time because it will depend on levels of share-based payments granted in the future. However, had we adopted SFAS No. 123(R) in prior periods, the impact of that standard would have approximated the impact of SFAS No. 123 as described in the disclosure of pro forma net income and net income per share in Note 2 to our consolidated financial statements. We are currently evaluating the impact of the adoption of SFAS No. 123(R) on our results of operations, including the valuation methods and support for the assumptions that underlie the valuation of the awards. We plan to adopt SFAS No. 123(R) using the modified prospective method on January 1, 2006.

Off-Balance Sheet Arrangements

     We had no off-balance sheet arrangements as of September 30, 2005.

Additional Factors That May Affect Future Results

     The following risk factors and other information included in this quarterly report should be carefully considered. The risks and uncertainties described below are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial also may impair our business operations. If any of the following risks occur, our business, financial condition, operating results, and cash flows could be materially adversely affected.

Risks Related to Our Business

Failures or interruptions of our clearinghouse could materially harm our revenues and impair our ability to conduct our operations.

     We provide addressing, interoperability and infrastructure services that are critical to the operations of our customers. Notably, our clearinghouse is essential to the orderly operation of the national telecommunications system because it enables CSPs to ensure that telephone calls are routed to the appropriate destinations. Our system architecture is integral to our ability to process a high volume of transactions in a timely and effective manner. We could experience failures or interruptions of our systems and services, or other problems in connection with our operations, as a result of:

• damage to or failure of our computer software or hardware or our connections and outsourced service arrangements with third parties;

• errors in the processing of data by our system;

• computer viruses or software defects;

• physical or electronic break-ins, sabotage, intentional acts of vandalism and similar events;

• increased capacity demands or changes in systems requirements of our customers; or

• errors by our employees or third-party service providers.

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If we cannot adequately protect the ability of our clearinghouse to perform consistently at a high level or otherwise fail to meet our customers’ expectations:

• we may experience damage to our reputation, which may adversely affect our ability to attract or retain customers for our existing services, and may also make it more difficult for us to market our services;

• we may be subject to significant damages claims, under our contracts or otherwise, including the requirement to pay substantial penalties related to service level requirements in our contracts;

• our operating expenses or capital expenditures may increase as a result of corrective efforts that we must perform;

• our customers may postpone or cancel subsequently scheduled work or reduce their use of our services; or

• one or more of our significant contracts may be terminated early, or may not be renewed.

     Any of these consequences would adversely affect our revenues and performance.

Security breaches could result in an interruption of service or reduced quality of service, which could increase our costs or result in a reduction in the use of our services by our customers.

     Our systems may be vulnerable to physical break-ins, computer viruses, attacks by computer hackers or similar disruptive problems. If unauthorized users gain access to our databases, they may be able to steal, publish, delete or modify sensitive information that is stored or transmitted on our networks and that we are required by our contracts and FCC rules to keep confidential. A security or privacy breach could result in an interruption of service or reduced quality of service and we may be required to make significant expenditures in connection with corrective efforts we are required to perform. In addition, a security or privacy breach may harm our reputation and cause our customers to reduce their use of our services, which could harm our revenues and business prospects.

The loss of, or damage to, a data center could interrupt our operations and materially harm our revenues and growth.

     Because telecommunications service providers must query a copy of our continuously updated databases to route virtually every telephone call in North America, the integrity of our data centers is essential to our business. We may not have sufficient redundant systems or back up facilities to allow us to receive and process data in the event of a loss of, or damage to, a data center. We could lose, or suffer damage to, a data center in the event of power loss; natural disasters such as fires, earthquakes, floods and tornadoes; telecommunications failures, such as transmission cable cuts; or other similar events that could adversely affect our customers’ ability to access our clearinghouse. We may be required to make significant expenditures to repair or replace a data center. Any interruption to our operations due to the loss of, or damage to, a data center could harm our reputation and cause our customers to reduce their use of our services, which could harm our revenues and business prospects.

The failure of the third-party software and equipment used by our customers or that we use in our clearinghouse could cause interruptions or failures of our systems.

     We incorporate hardware, software and equipment developed by third parties in our clearinghouse. Our third-party vendors include, among others, International Business Machines Corporation, or IBM, and Oracle Corporation for database systems and software, and EMC Corporation and Hewlett-Packard Company for equipment. Similarly, to access our clearinghouse and utilize our services, many of our customers rely on hardware, software and other equipment developed, supported and maintained by third-party providers. As a result, our ability to provide clearinghouse services depends in part on the continued performance and support of the third-party products on which we and our customers rely. If these products experience failures or have defects and the third parties that supply the products fail to provide adequate support, this could result in or exacerbate an interruption or failure of our systems or services.

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Our seven contracts with North American Portability Management, LLC represent in the aggregate a substantial portion of our revenues, are not exclusive and could be terminated or modified in ways unfavorable to us, and we may be unable to renew these contracts at the end of their term.

     Our seven contracts with North American Portability Management, LLC, an industry group that represents all telecommunications service providers in the United States, to provide telephone number portability and other clearinghouse services are not exclusive and could be terminated or modified in ways unfavorable to us. These seven separate contracts, each of which represented between 8.2% and 14.0% of our total revenues in 2004, represented in the aggregate approximately 73.1% of our total revenues in 2004. North American Portability Management, LLC could, at any time, solicit or receive proposals from other providers to provide services that are the same as or similar to ours. In addition, these contracts have finite terms and are currently scheduled to expire in May 2011. Furthermore, any of these contracts could be terminated in advance of its scheduled expiration date in limited circumstances, most notably if we are in default of these agreements. Although these contracts do not contain cross default provisions, conditions leading to a default by us under one of our contracts could lead to a default under others, or all seven.

     We may be unable to renew these contracts on acceptable terms when they are being considered for renewal if we fail to meet our customers’ expectations, including for performance and other reasons, or if another provider offers to provide the same or similar services at a lower cost. In addition, competitive forces resulting from the possible entrance of a competitive provider could create significant pricing pressure, which could then cause us to reduce the selling price of our services under our contracts. If these contracts are terminated or modified in a manner that is adverse to us, or if we are unable to renew these contracts on acceptable terms upon their expiration, it would have a material adverse effect on our business, prospects, financial condition and results of operations.

Our contracts with North American Portability Management, LLC contain provisions that may restrict our ability to use data that we administer in our clearinghouse, which may limit our ability to offer services that we currently, or intend to, offer.

     In addition to offering telephone number portability and other clearinghouse services under our contracts with North American Portability Management, LLC, some of our service offerings not related to these contracts require that we use certain data from our clearinghouse. We have been informed by North American Portability Management, LLC that they believe that use of this data, which is unrelated to our performance under these contracts, may not be permissible under the current agreements. Although in 2004 less than 1% of our revenues came from the provision of these unrelated services, if we are subject to adverse terms of access or are not permitted to use this data, our ability to offer new services requiring the use of this data may be limited.

Certain of our other contracts may be terminated or we may be unable to renew these contracts, which may reduce the number of services we can offer and damage our reputation.

     In addition to our contracts with North American Portability Management, LLC, we rely on other contracts to provide some of the services that we offer, including the contracts that appoint us to serve as the:

• North American Numbering Plan Administrator, under which we maintain the authoritative database of telephone numbering resources in North America;

• National Pooling Administrator, under which we perform the administrative functions associated with the administration and management of telephone number inventory and allocation of pooled blocks of unassigned telephone numbers;

• provider of number portability services in Canada;

• operator of the .us registry; and

• operator of the .biz registry.

     Each of these contracts provides for early termination in limited circumstances, most notably if we are in default. In addition, our contracts to serve as the North American Numbering Plan Administrator and as the

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National Pooling Administrator and to operate the .us registry, each of which is with the U.S. government, may be terminated by the government at will. If we fail to meet the expectations of the FCC, the U.S. Department of Commerce or our customers, as the case may be, for any reason, including for performance-related or other reasons, or if another provider offers to perform the same or similar services for a lower price, we may be unable to extend or renew these contracts. In that event, the number of services we are able to offer may be reduced, which would adversely affect our revenues from the provision of these services. In addition, although these contracts in the aggregate constituted less than 9.7% of our revenues in 2004, and no single one of these contracts constituted more than 6.1% of our revenues in 2004, each of these contracts establishes us as the sole provider of the particular services covered by that contract during its term. If one of these contracts were terminated, or if we were unable to renew or extend the term of any particular contract, we would no longer be able to provide the services covered by that contract and could suffer a loss of prestige that would make it more difficult for us to compete for contracts to provide similar services in the future.

Failure to comply with neutrality requirements could result in loss of significant contracts.

     Pursuant to orders and regulations of the U.S. government and provisions contained in our material contracts, we must continue to comply with certain neutrality requirements, meaning generally that we cannot favor any particular telecommunications service provider, telecommunications industry segment or technology or group of telecommunications consumers over any other telecommunications service provider, industry segment, technology or group of consumers in the conduct of our business. The FCC oversees our compliance with the neutrality requirements applicable to us in connection with some of the services we provide. We provide to the FCC and the North American Numbering Council, a federal advisory committee established by the FCC to advise and make recommendations on telephone numbering issues, regular certifications relating to our compliance with these requirements. Our ability to comply with the neutrality requirements to which we are subject may be affected by the activities of our stockholders or other parties. For example, if the ownership of our capital stock subjects us to undue influence by parties with a vested interest in the outcome of numbering administration, the FCC could determine that we are not in compliance with our neutrality obligations. Our failure to continue to comply with the neutrality requirements to which we are subject under applicable orders and regulations of the U.S. government and commercial contracts may result in fines, corrective measures or termination of our contracts, any one of which could have a material adverse effect on our results of operations.

Regulatory and statutory changes that affect us or the communications industry in general may increase our costs or impair our growth.

     The FCC has regulatory authority over certain aspects of our operations, most notably our compliance with our neutrality requirements. We are also affected by business risks specific to the regulated communications industry. Moreover, the business of our customers is subject to regulation that indirectly affects our business. As communications technologies and the communications industry continue to evolve, the statutes governing the communications industry or the regulatory policies of the FCC may change. If this were to occur, the demand for our clearinghouse services could change in ways that we cannot easily predict and our revenues could decline. These risks include the ability of the federal government, most notably the FCC, to:

• increase regulatory oversight over the services we provide;

• adopt or modify statutes, regulations, policies, procedures or programs that are disadvantageous to the services we provide, or that are inconsistent with our current or future plans, or that require modification of the terms of our existing contracts, including the manner in which we charge for certain of our services. For example, Bellsouth Corporation recently filed a petition with the FCC seeking changes in the way our customers are billed for services provided by us under our contracts with North American Portability Management LLC;

• prohibit us from entering into new contracts or extending existing contracts to provide services to the communications industry based on actual or suspected violations of our neutrality requirements, business performance concerns, or other reasons;

• adopt or modify statutes, regulations, policies, procedures or programs in a way that could cause changes to our operations or costs or the operations of our customers;

• appoint, or cause others to appoint, substitute or add additional parties to perform the services that we currently provide; and

• prohibit or restrict the provision or export of new or expanded services under our contracts, or prevent the

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introduction of other services not under the contracts based upon restrictions within the contracts or in FCC policies.

     In addition, we are subject to risks arising out of the delegation of the Department of Commerce’s responsibilities for the domain name system to the International Corporation for Assigned Names and Numbers, or ICANN. Changes in the regulations or statutes to which our customers are subject could cause our customers to alter or decrease the services they purchase from us. We cannot predict when, or upon what terms and conditions, further regulation or deregulation might occur or the effect future regulation or deregulation may have on our business.

If we do not adapt to rapid technological change in the communications industry, we could lose customers or market share.

     Our industry is characterized by rapid technological change and frequent new service offerings. Significant technological changes could make our technology and services obsolete. We must adapt to our rapidly changing market by continually improving the features, functionality, reliability and responsiveness of our addressing, interoperability and infrastructure services, and by developing new features, services and applications to meet changing customer needs. We cannot guarantee that we will be able to adapt to these challenges or respond successfully or in a cost-effective way. Our failure to do so would adversely affect our ability to compete and retain customers or market share. Although we currently provide our services primarily to traditional telecommunications companies, many existing and emerging companies are providing, or propose to provide, IP-based voice services. Our future revenues and profits will depend, in part, on our ability to provide services to IP-based service providers.

The market for certain of our addressing, interoperability, and infrastructure services is competitive, which could result in fewer customer orders, reduced revenues or margins or loss of market share.

     Our services most frequently compete against the legacy in-house systems of our customers. In addition, although we are not a telecommunications service provider, we compete in some areas against communications service companies, communications software companies and system integrators that provide systems and services used by CSPs to manage their networks and internal operations in connection with telephone number portability and other telecommunications transactions. We face competition from large, well-funded providers of addressing, interoperability and infrastructure services. Moreover, we are aware of other companies that are focusing significant resources on developing and marketing services that will compete with us. We anticipate continued growth of competition. Some of our current and potential competitors have significantly more employees and greater financial, technical, marketing and other resources than we have. Our competitors may be able to respond more quickly to new or emerging technologies and changes in customer requirements than we can. Also, many of our current and potential competitors have greater name recognition that they can use to their advantage. Increased competition could result in fewer customer orders, reduced revenues, reduced gross margins and loss of market share, any of which could harm our business.

Our failure to achieve or sustain market acceptance at desired pricing levels could impact our ability to maintain profitability or positive cash flow.

     Our competitors and customers may cause us to reduce the prices we charge for services. The primary sources of pricing pressure include:

• competitors offering our customers services at reduced prices, or bundling and pricing services in a manner that makes it difficult for us to compete. For example, a competing provider of interoperability services might offer its services at lower rates than we do, or a competing domain name registry provider may reduce its prices for domain name registration;

• customers with a significant volume of transactions may have enhanced leverage in pricing negotiations with us; and

• if our prices are too high, potential customers may find it economically advantageous to handle certain functions internally instead of using us.

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     We may not be able to offset the effects of any price reductions by increasing the number of transactions we handle or the number of customers we serve, by generating higher revenues from enhanced services or by reducing our costs.

A decline in the volume of transactions we handle could have a material adverse effect on our results of operations.

     We earn revenues for the vast majority of the services that we provide on a per transaction basis. There are no minimum revenue requirements in our contracts, which means that there is no limit to the potential adverse effect on our revenues from a decrease in our transaction volumes. As a result, if industry participants reduce their usage of our services from their current levels, our revenues and results of operations will suffer. For example, if customer churn between CSPs in the industry stabilizes, or if CSPs do not compete vigorously to lure customers away from their competitors, use of our telephone number portability and other services may decline. In addition, if CSPs develop internal systems to address their infrastructure needs, or if the cost of such transactions makes it impractical for a given carrier to use our services for these purposes, we may experience a reduction in transaction volumes. Finally, the trends that we believe will drive the future demand for our clearinghouse services, such as the emergence of IP services, growth of wireless services, consolidation in the industry, and pressure on carriers to reduce costs, may not actually result in increased demand for our services, which would harm our future revenues and growth prospects.

If we are unable to manage our growth, our revenues and profits could be adversely affected.

     Sustaining our growth has placed significant demands on our management as well as on our administrative, operational and financial resources. For us to continue to manage our growth, we must continue to improve our operational, financial and management information systems and expand, motivate and manage our workforce. If we are unable to successfully manage our growth without compromising our quality of service and our profit margins, or if new systems that we implement to assist in managing our growth do not produce the expected benefits, our revenues and profits could be adversely affected.

We may be unable to complete suitable acquisitions, or we may undertake acquisitions that could increase our costs or liabilities or be disruptive to our business.

     We have made a number of acquisitions in the past, and one of our strategies is to pursue acquisitions selectively in the future. We may not be able to locate suitable acquisition candidates at prices that we consider appropriate or to finance acquisitions on terms that are satisfactory to us. If we do identify an appropriate acquisition candidate, we may not be able to successfully negotiate the terms of an acquisition, finance the acquisition or, if the acquisition occurs, integrate the acquired business into our existing business. Acquisitions of businesses or other material operations may require additional debt or equity financing, resulting in additional leverage or dilution of your ownership of our securities. Integration of acquired business operations could disrupt our business by diverting management away from day-to-day operations. The difficulties of integration may be increased by the necessity of coordinating geographically dispersed organizations, integrating personnel with disparate business backgrounds and combining different corporate cultures. We also may not realize cost efficiencies or synergies or other benefits that we anticipated when selecting our acquisition candidates. In addition, we may need to record write-downs from future impairments of intangible assets, which could reduce our future reported earnings. At times, acquisition candidates may have liabilities, neutrality-related risks or adverse operating issues that we fail to discover through due diligence prior to the acquisition. The failure to discover such issues prior to such acquisition could have a material adverse effect on our business and results of operations.

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Our potential expansion into international markets may be subject to uncertainties that could increase our costs to comply with regulatory requirements in foreign jurisdictions, disrupt our operations, and require increased focus from our management.

     Our growth strategy could involve the growth of our operations in foreign jurisdictions. International operations and business expansion plans are subject to numerous additional risks, including economic and political risks in foreign jurisdictions in which we operate or seek to operate, the difficulty of enforcing contracts and collecting receivables through some foreign legal systems, unexpected changes in regulatory requirements and the difficulties associated with managing a large organization spread throughout various countries. If we continue to expand our business globally, our success will depend, in large part, on our ability to anticipate and effectively manage these and other risks associated with our international operations. However, any of these factors could adversely affect our international operations and, consequently, our operating results.

Our senior management is important to our customer relationships, and the loss of one or more of our senior managers could have a negative impact on our business.

     We believe that our success depends in part on the continued contributions of our Chief Executive Officer, Jeffrey Ganek, and other members of our senior management. We rely on our executive officers and senior management to generate business and execute programs successfully. In addition, the relationships and reputation that members of our management team have established and maintain with our customers and our regulators contribute to our ability to maintain good customer relations. The loss of Jeffrey Ganek or any other members of senior management could impair our ability to identify and secure new contracts and otherwise to manage our business.

We must recruit and retain skilled employees to succeed in our business, and our failure to recruit and retain qualified employees could harm our ability to maintain and grow our business.

     We believe that an integral part of our success is our ability to recruit and retain employees who have advanced skills in the addressing, interoperability and infrastructure services that we provide and who work well with our customers in the regulated environment in which we operate. In particular, we must hire and retain employees with the technical expertise and industry knowledge necessary to maintain and continue to develop our operations and must effectively manage our growing sales and marketing organization to ensure the growth of our operations. Our future success depends on the ability of our sales and marketing organization to establish direct sales channels and to develop multiple distribution channels with Internet service providers and other third parties. The employees with the skills we require are in great demand and are likely to remain a limited resource in the foreseeable future. If we are unable to recruit and retain a sufficient number of these employees at all levels, our ability to maintain and grow our business could be negatively impacted.

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We will continue to incur increased costs as a public company as a result of recently enacted and proposed changes in laws and regulations.

     Recently enacted and proposed changes in the laws and regulations affecting public companies, including the provisions of the Sarbanes-Oxley Act of 2002 and rules of the Securities and Exchange Commission and the New York Stock Exchange, have resulted and will continue to result in increased costs to us, including those related to corporate governance and the costs to operate as a public company. Section 404 of the Sarbanes-Oxley Act of 2002 requires companies to perform a comprehensive and costly evaluation and obtain an audit of their internal controls. The new rules could also make it more difficult or more costly for us to maintain certain types of insurance, including directors’ and officers’ liability insurance. The impact of these events could make it more difficult for us to attract and retain qualified persons to serve on our board of directors, our board committees or as executive officers.

We may need additional capital in the future and it may not be available on acceptable terms.

     We have historically relied on outside financing and cash flow from operations to fund our operations, capital expenditures and expansion. However, we may require additional capital in the future to fund our operations, finance investments in equipment or infrastructure, or respond to competitive pressures or strategic opportunities. We cannot assure you that additional financing will be available on terms favorable to us, or at all. In addition, the terms of available financing may place limits on our financial and operating flexibility. If we are unable to obtain sufficient capital in the future, we may:

• not be able to continue to meet customer demand for service quality, availability and competitive pricing;

• be forced to reduce our operations;

• not be able to expand or acquire complementary businesses; and

• not be able to develop new services or otherwise respond to changing business conditions or competitive pressures.

Risks Related to Our Common Stock

Our common stock price may be volatile.

     The market price of our Class A common stock may fluctuate widely. Fluctuations in the market price of our Class A common stock could be caused by many things, including:

• our perceived prospects and the prospects of the telephone and Internet industries in general;

• differences between our actual financial and operating results and those expected by investors and analysts;

• changes in analysts’ recommendations or projections;

• changes in general valuations for communications companies;

• adoption or modification of regulations, policies, procedures or programs applicable to our business;

• sales of our Class A common stock by our officers, directors or principal stockholders;

• sales of our Class A common stock due to a required divestiture under the terms of our certificate of incorporation; and

• changes in general economic or market conditions and broad market fluctuations.

     Each of these factors, among others, could have a material adverse effect on investments in our Class A common stock. In addition, in recent years, the stock market in general and the shares of technology companies in particular have experienced extreme price fluctuations. This volatility has had a substantial effect on the market prices of securities issued by many companies for reasons unrelated to the operating performance of the specific companies. Some companies that have had volatile market prices for their securities have had securities class action suits filed against them. If a suit were to be filed against us, regardless of the outcome, it could result in substantial costs and a diversion of our management’s attention and resources. This could have a material adverse effect on our business, prospects, financial condition and results of operations.

One of our stockholders holds a significant block of shares in our company and, as a result, may have significant influence over our company.

     Two representatives of Warburg Pincus serve on our seven-member board of directors and, pursuant to an agreement between us and certain holders of our Class A common stock, we anticipate that representatives of Warburg Pincus will continue to serve on our board of directors in the future. In addition, affiliates of Warburg Pincus own or control approximately 27.7% of the outstanding shares of Class A common stock. As of November 1, 2005, a portion of the shares owned by these stockholders was held in a voting trust that controls the voting rights with respect to some actions that are subject to the approval of our stockholders under applicable law. However, under the terms of the trust agreement, these stockholders may hold up to 9.9% of the voting power of our outstanding shares of capital stock directly, and they have full voting power over such shares. In addition, they will have the right to direct the voting trust as to how to vote their shares held in trust with respect to, among other things, any merger, sale or similar transaction involving NeuStar, the issuance of capital stock and the incurrence of substantial indebtedness. As a result of their substantial ownership interest, these affiliates of Warburg Pincus may have the ability to significantly influence the outcome of a vote by our stockholders in respect of these matters, and their interests could conflict with the interests of our other stockholders. Additionally, they and their affiliates are in

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the business of making investments in companies and may from time to time acquire and hold interests in businesses that compete or could in the future compete, directly or indirectly, with us. For example, another Warburg Pincus fund has a significant investment in Telcordia Technologies, Inc., which has competed (and may compete in the future) with us. Warburg Pincus and its affiliates may also pursue acquisition opportunities that may be complementary to our business, and as a result, those acquisition opportunities may not be available to us.

The existence of shares eligible for future sale may cause our stock price to decline.

     Prior to our initial public offering on June 29, 2005, there was no public market for the Class A common stock, which began trading on the New York Stock Exchange under the symbol “NSR” on June 29, 2005. We can make no prediction as to the effect, if any, that sales of shares of Class A common stock or the availability of shares of Class A common stock for sale will have on the market price of our Class A common stock. Nevertheless, sales of significant amounts of our Class A common stock in the public market, or the perception that such sales may occur, could adversely affect market prices.

     As of November 1, 2005, there were 60,330,246 shares of Class A common stock outstanding, and there were 449,665 shares of Class B common stock outstanding, which are immediately convertible into Class A common stock at the election of the holder. We have also reserved an additional 6,361,383 shares of Class A common stock for issuance upon exercise of warrants to purchase our Class A common stock outstanding as of November 1, 2005, and an additional 20,201,274 shares of Class A common stock for issuance upon exercise of options or other awards that have been granted or may be granted under the NeuStar, Inc. 1999 Equity Incentive Plan and the NeuStar, Inc. 2005 Stock Incentive Plan.

     Subject to restrictions on ownership and transfer of our capital stock contained in our certificate of incorporation, all of the 31,625,000 shares sold in our initial public offering are, and all of the shares issued under our 1999 Equity Incentive Plan or 2005 Stock Incentive Plan are or will be, transferable without restriction or further registration under the Securities Act of 1933, except for any such shares held or acquired by our “affiliates,” as such term is defined under Rule 144 of the Securities Act. In addition, any other outstanding shares sold by our stockholders pursuant to Rule 144 or another exemption from registration will be freely transferable without restriction or further registration under the Securities Act, except for any such shares held or acquired by our affiliates. Shares held by our affiliates may be sold only if registered under the Securities Act or sold in accordance with an applicable exemption from registration, such as Rule 144.

     Our principal stockholders, including affiliates of Warburg Pincus LLC and MidOcean Capital Investors, L.P., have certain registration rights.

     In our initial public offering, certain stockholders and option holders agreed that, until at least December 27, 2005, subject to limited exceptions, they would not dispose of or otherwise transfer any shares of our Class A common stock or any securities convertible into or exchangeable for our Class A common stock. According to our books and records, based on shares beneficially owned as of November 1, 2005 (calculated in accordance with the rules of the Securities and Exchange Commission), the stockholders and optionholders who executed lockup agreements beneficially owned 41,781,511 shares of our Class A common stock, of which 31,562,345 shares are beneficially owned by our directors and “executive officers” (as defined under Section 16 of the Securities Exchange Act of 1934) and other affiliates of ours, that will be released from this contractual lockup on December 27, 2005.

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Delaware law and provisions in our certificate of incorporation and bylaws could make a merger, tender offer or proxy contest difficult, and the market price of our Class A common stock may be lower as a result.

     We are a Delaware corporation, and the anti-takeover provisions of the Delaware General Corporation Law may discourage, delay or prevent a change in control by prohibiting us from engaging in a business combination with an interested stockholder for a period of three years after the person becomes an interested stockholder, even if a change of control would be beneficial to our existing stockholders. In addition, our certificate of incorporation and bylaws may discourage, delay or prevent a change in our management or control over us that stockholders may consider favorable. Our certificate of incorporation and bylaws:

• authorize the issuance of “blank check” preferred stock that could be issued by our board of directors to thwart a takeover attempt;

• prohibit cumulative voting in the election of directors, which would otherwise enable holders of less than a majority of our voting securities to elect some of our directors;

• establish a classified board of directors, as a result of which the successors to the directors whose terms have expired will be elected to serve from the time of election and qualification until the third annual meeting following election;

• require that directors only be removed from office for cause;

• provide that vacancies on the board of directors, including newly-created directorships, may be filled only by a majority vote of directors then in office;

• disqualify any individual from serving on our board if such individual’s service as a director would cause us to violate our neutrality requirements;

• limit who may call special meetings of stockholders;

• prohibit stockholder action by written consent, requiring all actions to be taken at a meeting of the stockholders; and

• establish advance notice requirements for nominating candidates for election to the board of directors or for proposing matters that can be acted upon by stockholders at stockholder meetings.

In order to comply with our neutrality requirements, our certificate of incorporation contains ownership and transfer restrictions relating to telecommunications service providers and their affiliates, which may inhibit potential acquisition bids that you and other stockholders may consider favorable, and the market price of our Class A common stock may be lower as a result.

     In order to comply with neutrality requirements imposed by the FCC in its orders and rules, no entity that qualifies as a “telecommunications service provider” or affiliate of a telecommunications service provider, as such terms are defined under the Communications Act of 1934 and FCC rules and orders, may beneficially own 5% or more of our capital stock. As a result, subject to limited exceptions, our certificate of incorporation prohibits any telecommunications service provider or affiliate of a telecommunications service provider from beneficially owning, directly or indirectly, 5% or more of our outstanding capital stock. Among other things, our certificate of incorporation provides that:

• if one of our stockholders experiences a change in status or other event that results in the stockholder violating this restriction, or if any transfer of our stock occurs that, if effective, would violate the 5% restriction, we may elect to purchase the excess shares (i.e., the shares that cause the violation of the restriction) or require that the excess shares be sold to a third party whose ownership will not violate the restriction;

• pending a required divestiture of these excess shares, the holder whose beneficial ownership violates the 5% restriction may not vote the shares in excess of the 5% threshold; and

• if our board of directors, or its permitted designee, determines that a transfer, attempted transfer or other event violating this restriction has taken place, we must take whatever action we deem advisable to prevent or refuse to give effect to the transfer, including refusal to register the transfer, disregard of any vote of the shares by the prohibited owner, or the institution of proceedings to enjoin the transfer.

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     Our board of directors has the authority to make determinations as to whether any particular holder of our capital stock is a telecommunications service provider or an affiliate of a telecommunications service provider. Any person who acquires, or attempts or intends to acquire, beneficial ownership of our stock that will or may violate this restriction must notify us as provided in our certificate of incorporation. In addition, any person who becomes the beneficial owner of 5% or more of our stock must notify us and certify that such person is not a telecommunications service provider or an affiliate of a telecommunications service provider. If a 5% stockholder fails to supply the required certification, we are authorized to treat that stockholder as a prohibited owner – meaning, among other things, that we may elect to purchase the excess shares or require that the excess shares be sold to a third party whose ownership will not violate the restriction. We may request additional information from our stockholders to ensure compliance with this restriction. Our board will treat any “group,” as that term is defined in Section 13(d)(3) of the Securities Exchange Act of 1934, as a single person for purposes of applying the ownership and transfer restrictions in our certificate of incorporation.

     Nothing in our certificate of incorporation restricts our ability to purchase shares of our capital stock. If a purchase by us of shares of our capital stock results in a stockholder’s percentage interest in our outstanding capital stock increasing to over the 5% threshold, such stockholder must deliver the required certification regarding such stockholder’s status as a telecommunications service provider or affiliate of a telecommunications service provider. In addition, to the extent that a repurchase by us of shares of our capital stock causes any stockholder to violate the restrictions on ownership and transfer contained in our certificate of incorporation, that stockholder will be subject to all of the provisions applicable to prohibited owners, including required divestiture and loss of voting rights.

     These restrictions and requirements may:

• discourage industry participants that might have otherwise been interested in acquiring us from making a tender offer or proposing some other form of transaction that could involve a premium price for our shares or otherwise be in the best interests of our stockholders; and

• discourage investment in us by other investors who are telecommunications service providers or who may be deemed to be affiliates of a telecommunications service provider.

     The standards for determining whether an entity is a “telecommunications service provider” are established by the FCC. In general, a telecommunications service provider is an entity that offers telecommunications services to the public at large, and is, therefore, providing telecommunications services on a common carrier basis. Moreover, a party will be deemed to be an affiliate of a telecommunications service provider if that party controls, is controlled by, or is under common control with, a telecommunications service provider. A party is deemed to control another if that party, directly or indirectly:

• owns 10% or more of the total outstanding equity of the other party;

• has the power to vote 10% or more of the securities having ordinary voting power for the election of the directors or management of the other party; or

• has the power to direct or cause the direction of the management and policies of the other party.

     The standards for determining whether an entity is a telecommunications service provider or an affiliate of a telecommunications service provider and the rules applicable to telecommunications service providers and their affiliates are complex and may be subject to change. Each stockholder will be responsible for notifying us if it is a telecommunications service provider or an affiliate of a telecommunications service provider.

Holders of our options may have rescission rights against us, and we may be subject to fines and sanctions under federal and state securities laws.

     We did not supply the holders of options granted under our 1999 Equity Incentive Plan with financial and other information required to comply with Rule 701 under the Securities Act. Shares issued upon exercise of options granted during this time were issued in violation of Section 5 of the Securities Act of 1933. In addition, we did not comply with certain requirements in California and Maryland to qualify the issuance of our options under the securities laws in those states. As a result, regulators could impose monetary fines or other sanctions as provided under these federal and state laws. In addition, holders of those options and shares acquired upon exercise of such options may have rescission rights against us.

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Item 3. Quantitative and Qualitative Disclosures about Market Risk

     We are subject to market risk associated with changes in foreign currency exchange rates and interest rates. Our exchange rate risk related to foreign currency exchange is due to our number portability contract with Canadian LNP Consortium, Inc. Based on this agreement, we recognize revenue on a per transaction basis as the services are performed and bill for these services using the Canadian dollar at a fixed exchange rate that is updated annually. As a result, we are affected by currency fluctuations in the value of the U.S. dollar as compared to the Canadian dollar. The net impact of foreign exchange rate fluctuations on earnings was not material for the three- and nine-month periods ended September 30, 2004 and 2005, respectively. Interest rate exposure is primarily limited to the approximately $68.3 million of short-term investments owned by us at September 30, 2005. Such investments consist principally of commercial paper, high-grade auction rate securities and U.S. government or corporate debt securities. We do not actively manage the risk of interest rate fluctuations; however, such risk is mitigated by the relatively short-term nature of our investments. We do not consider the present rate of inflation to have a material impact on our business.

Item 4. Controls and Procedures

     We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our reports filed or submitted under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

     As of September 30, 2005, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures. Based on the foregoing, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective and were operating at the reasonable assurance level.

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PART II — OTHER INFORMATION

Item 1. Legal Proceedings.

     From time to time, we are subject to claims in legal proceedings arising in the normal course of our business. We do not believe that we are party to any pending legal action that could reasonably be expected to have a material adverse effect on our business or operating results.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

     The following information is furnished in connection with securities sold by us during the period covered by this Form 10-Q. Share numbers in the following discussion have been adjusted to give effect to the recapitalization effected as part of the our initial public offering, and assume that the holders of all shares of common stock issued upon exercise of options during the period covered by this Form 10-Q elected to convert such shares into Class A common stock.

     From July 1, 2005 through September 19, 2005, we issued 553,882 shares of Class A common stock upon exercise of options by directors, officers, employees and consultants. We received aggregate proceeds of $1,813,439 from the payment of the exercise price with respect to such options. This issuance was undertaken in reliance upon the exemptions from the registration requirements of the Securities Act of 1933, including by Rule 701 promulgated thereunder, as a transaction pursuant to compensatory benefit plans and contracts relating to compensation.

Item 3. Defaults upon Senior Securities.

     None.

Item 4. Submission of Matters to a Vote of Security Holders

     None.

Item 5. Other Information

     None.

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Item 6. Exhibits

     (a) Exhibits:

Exhibit No.	Description
3.1	Restated Certificate of Incorporation.*
3.2	Amended and Restated Bylaws.*
4.1	Specimen Class A Common Stock Certificate.*
4.2	Specimen Class B Common Stock Certificate.*
4.3	Stockholders Agreement, dated June 28, 2005, by and among NeuStar, Inc. and the stockholders named therein.¢
4.4	Registration Rights Agreement, dated as of June 5, 2001, by and among NeuStar, Inc. and the stockholders named therein.*
4.5	Form of Warrants dated December 7, 1999.^
10.3.2	Amendment to National Thousands-Block Pooling Administration agreement awarded to NeuStar, Inc. by the Federal Communications Commission.$
10.3.3	Amendment to National Thousands-Block Pooling Administration agreement awarded to NeuStar, Inc. by the Federal Communications Commission.^
10.4.1	Amendment to North American Numbering Plan Administrator agreement awarded to NeuStar, Inc. by the Federal Communications Commission. $
10.5.1	Amendment to .us Top-Level Domain Registry Management and Coordination agreement awarded to NeuStar, Inc. by the National Institute of Standards and Technology on behalf of the Department of Commerce.^
10.5.2	Amendment to .us Top-Level Domain Registry Management and Coordination agreement awarded to NeuStar, Inc. by the National Institute of Standards and Technology on behalf of the Department of Commerce.^
31.1	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.^
31.2	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.^
32.1	Certification of Chief Executive Officer and Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.^

^	Filed herewith.
*	Incorporated by reference to NeuStar, Inc.’s registration statement on Form S-1 (File No. 333-123635).
$	Incorporated by reference to NeuStar, Inc.’s report on Form 8-K, filed on September 15, 2005.
¢	Incorporated by reference to NeuStar, Inc.’s quarterly report on Form 10-Q filed on August 15, 2005 (File No. 001-32548).

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SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	NeuStar, Inc.
Date: November 10, 2005	By:	/s/ JEFFREY A. BABKA
		Jeffrey A. Babka
		Chief Financial Officer
		(Principal Financial and Accounting Officer
		and Duly Authorized Officer)

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EX-4.5

Exhibit 4.5

FORM OF WARRANT

	Shares of Common Stock
Name of Holder	Subject to Warrant		Purchase Price
Warburg, Pincus Equity Partners, L.P.		6,011,509	$	0.0667
Warburg, Pincus Netherlands Equity Partners I, CV		318,066	$	0.0667
Warburg, Pincus Netherlands Equity Partners III, CV		31,808	$	0.0667

REPLACEMENT WARRANT

WARRANT

THIS WARRANT AND THE SECURITIES ISSUABLE UPON ITS EXERCISE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR ANY STATE SECURITIES LAW, AND MAY NOT BE TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION UNDER THE ACT OR IN A TRANSACTION WHICH, IN THE OPINION OF COUNSEL REASONABLY SATISFACTORY TO NEUSTAR, INC., QUALIFIES AS AN EXEMPT TRANSACTION UNDER THE ACT AND THE RULES AND REGULATIONS PROMULGATED THEREUNDER.

NEUSTAR, INC.

Common Stock Purchase Warrant

     NEUSTAR, INC., a Delaware corporation (the “Company”), hereby certifies that, for value received, (the “Holder”), or its assigns, is entitled, subject to the terms set forth below, to purchase from the Company, at any time and from time to time beginning on December 7, 1999 and ending on December 7, 2009, in whole or in part, an aggregate of [_______] fully paid and non-assessable shares of the Class A Common Stock, par value $0.001 per share, of the Company (the “Common Stock”) at a purchase price, subject to the provisions of Paragraph 3 hereof, of $0.0667 per share (the “Purchase Price”). The Purchase Price and the number and character of such shares are subject to adjustment as provided below, and the term “Common Stock” shall include, unless the context otherwise requires, the stock or other securities or property at the time deliverable upon the exercise of this Warrant. This Warrant is herein called the “Warrant.” This Warrant replaces and supersedes the warrant originally issued by the Company to the Holder on December 7, 1999 (the “Original Warrant”), and reflects all adjustments in respect of the previous recapitalizations of the Company effected in the years 2000 and 2005, respectively, as provided under the terms and provisions of the Original Warrant.

     1. EXERCISE OF WARRANT. The purchase rights evidenced by this Warrant shall be exercised by the holder surrendering this Warrant, with the form of subscription at the end hereof duly executed by such holder, to the Company at its office at 46000 Center Oak Plaza, Sterling, VA 20166, accompanied by payment, of an amount (the “Exercise Payment”) equal to the Purchase Price multiplied by the number of shares being purchased pursuant to such exercise, payable as follows: (a) by payment to the Company in cash, by certified or official bank check, or by wire transfer of the Exercise Payment, (b) by surrender to the Company for cancellation of securities of the Company having a Market Price (as hereinafter defined) on the date of exercise equal to the Exercise Payment; or (c) by a combination of the methods described in clauses (a) and (b) above. In lieu of exercising the Warrant, the holder may elect to receive a payment equal to the difference between (i) the Market Price multiplied by the number of shares as to which the payment is then being elected and (ii) the exercise price with respect to such shares, payable by the Company to the Holder only in shares of Common Stock valued at the Market Price on the date of exercise. For purposes hereof, the term “Market Price” shall mean the average closing price of a share of Common

Stock for the 15 consecutive trading days preceding such day on the principal national securities exchange on which the shares of Common Stock or securities are listed or admitted to trading or, if not listed or admitted to trading on any national securities exchange, the average of the reported bid and asked prices during such 15 trading day period in the over-the-counter market as furnished by the National Quotation Bureau, Inc., or, if such firm is not then engaged in the business of reporting such prices, as furnished by any member of the National Association of Securities Dealers, Inc. selected by the Company or, if the shares of Common Stock or securities are not publicly traded, the Market Price for such day shall be the fair market value thereof determined jointly by the Company and the holder of this Warrant; provided, however, that if such parties are unable to reach agreement within a reasonable period of time, the Market Price shall be determined in good faith by the independent investment banking firm selected jointly by the Company and the holder of this Warrant or, if that selection cannot be made within 15 days, by an independent investment banking firm selected by the American Arbitration Association in accordance with its rules.

     1.1 Partial Exercise. This Warrant may be exercised for less than the full number of shares of Common Stock, in which case the number of shares receivable upon the exercise of this Warrant as a whole, and the sum payable upon the exercise of this Warrant as a whole, shall be proportionately reduced. Upon any such partial exercise, the Company at its expense will forthwith issue to the holder hereof a new Warrant or Warrants of like tenor calling for the number of shares of Common Stock as to which rights have not been exercised, such Warrant or Warrants to be issued in the name of the holder hereof or his nominee (upon payment by such holder of any applicable transfer taxes).

     2. DELIVERY OF STOCK CERTIFICATES ON EXERCISE. As soon as practicable after the exercise of this Warrant and payment of the Purchase Price, and in any event within ten (10) days thereafter, the Company, at its expense, will cause to be issued in the name of and delivered to the holder hereof a certificate or certificates for the number of fully paid and non-assessable shares or other securities or property to which such holder shall be entitled upon such exercise, plus, in lieu of any fractional share to which such holder would otherwise be entitled, cash in an amount determined in accordance with Paragraph 3.9 hereof. The Company agrees that the shares so purchased shall be deemed to be issued to the holder hereof as the record owner of such shares as of the close of business on the date on which this warrant shall have been surrendered and payment made for such shares as aforesaid.

     3. ANTI-DILUTION PROVISIONS AND OTHER ADJUSTMENTS. In order to prevent dilution of the right granted hereunder, the Purchase Price shall be subject to adjustment from time to time in accordance with this Paragraph 3. Upon each adjustment of the Purchase Price pursuant to this Paragraph 3, the registered holder of this Warrant shall thereafter be entitled to acquire upon exercise, at the Purchase Price resulting from such adjustment, the number of shares of the Company’s Common Stock obtainable by multiplying the Purchase Price in effect immediately prior to such adjustment by the number of shares of the Company’s Common Stock acquirable immediately prior to such adjustment and dividing the product thereof by the Purchase Price resulting from such adjustment.

     3.1 Adjustment for Issue or Sale of Common Stock at Less than Purchase Price. Except as provided in Paragraph 3.2 or 3.5 below, if and whenever on or after the date of issuance hereof the Company shall issue or sell, or shall in accordance with subparagraphs 3.1(1) to (9), inclusive, be deemed to have issued or sold, any shares of its Common Stock for a

2

consideration per share less than the Purchase Price in effect immediately prior to the time of such issue or sale, then forthwith upon such issue or sale (the “Triggering Transaction”), the Purchase Price shall, subject to subparagraphs (1) to (9) of this Paragraph 3.1, be reduced to the price (calculated to the nearest tenth of a cent) determined by dividing:

     (a) an amount equal to the sum of (x) the product derived by multiplying the Number of Common Shares Deemed Outstanding immediately prior to such Triggering Transaction by the Purchase Price then in effect, plus (y) the consideration, if any, received by the Company upon consummation of such Triggering Transaction, by

     (b) an amount equal to the sum of (x) the Number of Common Shares Deemed Outstanding immediately prior to such Triggering Transaction plus (y) the number of shares of Common Stock issued (or deemed to be issued in accordance with subparagraphs 3.1(1) to (9)) in connection with the Triggering Transaction.

     For purposes of this Paragraph 3, the term “Number of Common Shares Deemed Outstanding” at any given time shall mean the sum of (i) the number of shares of the Company’s Common Stock outstanding at such time, (ii) the number of shares of Common Stock issuable assuming conversion at such time of the outstanding shares of Class B Common Stock, par value $0.001 per share, of the Company (the “Class B Common Stock”), (iii) the number of shares of the Company’s Common Stock deemed to be outstanding under subparagraphs 3.1(1) to (9), inclusive, at such time and (iv) (without duplication) the number of shares of Common Stock issuable with respect to any securities of the types described in items (i) and (ii) of Paragraph 3.5 outstanding at such time.

     For purposes of determining the adjusted Purchase Price under this Paragraph 3.1, the following subsections (1) to (9), inclusive, shall be applicable:

     (1) In case the Company at any time shall in any manner grant (whether directly or by assumption in a merger or otherwise) any rights to subscribe for or to purchase, or any options for the purchase of, Common Stock or any stock or other securities convertible into or exchangeable for Common Stock (such rights or options being herein called “Options” and such convertible or exchangeable stock or securities being herein called “Convertible Securities”), whether or not such Options or the right to convert or exchange any such Convertible Securities are immediately exercisable and the price per share for which the Common Stock is issuable upon exercise, conversion or exchange (determined by dividing (x) the total amount, if any, received or receivable by the Company as consideration for the granting of such options, plus the minimum aggregate amount of additional consideration payable to the Company upon the exercise of all such Options, plus, in the case of such Options which relate to Convertible Securities, the minimum aggregate amount of additional consideration, if any, payable upon the issue or sale of such Convertible Securities and upon the conversion or exchange thereof, by (y) the total maximum number of shares of Common Stock issuable upon the exercise of such Options or the conversion or exchange of such Convertible Securities) shall be less than the Purchase Price in effect immediately prior to the time of the granting of such Option, then the total maximum amount of Common Stock issuable upon the exercise of such Options, or, in the case of options for Convertible Securities, upon the conversion or exchange of such Convertible Securities, shall (as of the date of granting of such Options) be deemed to be outstanding and to

3

have been issued and sold by the Company for such price per share. No adjustment of the Purchase Price shall be made upon the actual issue of such shares of Common Stock or such Convertible Securities upon the exercise of such Options, except as otherwise provided in subparagraph (3) below.

     (2) In case the Company at any time shall in any manner issue (whether directly or by assumption in a merger or otherwise) or sell any Convertible Securities, whether or not the rights to exchange or convert thereunder are immediately exercisable, and the price per share for which Common Stock is issuable upon such conversion or exchange (determined by dividing (x) the total amount received or receivable by the Company as consideration for the issue or sale of such Convertible Securities, plus the minimum aggregate amount of additional consideration, if any, payable to the Company upon the conversion or exchange thereof, by (y) the total maximum number of shares of Common Stock issuable upon the conversion or exchange of all such Convertible Securities) shall be less than the Purchase Price in effect immediately prior to the time of such issue or sale, then the total maximum number of shares of Common Stock issuable upon conversion or exchange of all such Convertible Securities shall (as of the date of the issue or sale of such Convertible Securities) be deemed to be outstanding and to have been issued and sold by the Company for such price per share. No adjustment of the Purchase Price shall be made upon the actual issue of such Common Stock upon exercise of the rights to exchange or convert under such Convertible Securities, except as otherwise provided in subparagraph (3) below.

     (3) If the purchase price provided for in any Options referred to in subparagraph (1), the additional consideration, if any, payable upon the conversion or exchange of any Convertible Securities referred to in subparagraphs (1) or (2), or the rate at which any Convertible Securities referred to in subparagraph (1) or (2) are convertible into or exchangeable for Common Stock shall change at any time (other than under or by reason of provisions designed to protect against dilution of the type set forth in Paragraph 3.1 or 3.3), the Purchase Price in effect at the time of such change shall forthwith be readjusted to the Purchase Price which would have been in effect at such time had such Options or Convertible Securities still outstanding provided for such changed purchase price, additional consideration or conversion rate, as the case may be, at the time initially granted, issued or sold. If the purchase price provided for in any Option referred to in subparagraph (1) or the rate at which any Convertible Securities referred to in subparagraphs (1) or (2) are convertible into or exchangeable for Common Stock, shall be reduced at any time under or by reason of provisions with respect thereto designed to protect against dilution, then in case of the delivery of Common Stock upon the exercise of any such Option or upon conversion or exchange of any such Convertible Security, the Purchase Price then in effect hereunder shall forthwith be adjusted to such respective amount as would have been obtained had such Option or Convertible Security never been issued as to such Common Stock and had adjustments been made upon the issuance of the shares of Common Stock delivered as aforesaid, but only if as a result of such adjustment the Purchase Price then in effect hereunder is hereby reduced.

     (4) On the expiration of any Option or the termination of any right to convert or exchange any Convertible Securities, the Purchase Price then in effect hereunder shall forthwith be increased to the Purchase Price which would have been in effect at the time of such expiration or termination had such Option or Convertible Securities, to the extent outstanding immediately prior to such expiration or termination, never been issued.

4

     (5) In case any Options shall be issued in connection with the issue or sale of other securities of the Company, together comprising one integral transaction in which no specific consideration is allocated to such Options by the parties thereto, such Options shall be deemed to have been issued without consideration.

     (6) In case any shares of Common Stock, Options or Convertible Securities shall be issued or sold or deemed to have been issued or sold for cash, the consideration received therefor shall be deemed to be the amount received by the Company therefor. In case any shares of Common Stock, Options or Convertible Securities shall be issued or sold for a consideration other than cash, the amount of the consideration other than cash received by the Company shall be the fair value of such consideration as determined in good faith by the Board of Directors of the Company. In case any shares of Common Stock, Options or Convertible Securities shall be issued in connection with any merger in which the Company is the surviving corporation, the amount of consideration therefor shall be deemed to be the fair value of such portion of the net assets and business of the non-surviving corporation as shall be attributed by the Board of Directors of the Company in good faith to such Common Stock, Options or Convertible Securities, as the case may be.

     (7) The number of shares of Common Stock outstanding at any given time shall not include shares owned or held by or for the account of the Company, and the disposition of any shares so owned or held shall be considered an issue or sale of Common Stock for the purpose of this Paragraph 3.1.

     (8) In case the Company shall declare a dividend or make any other distribution upon the stock of the Company payable in Options or Convertible Securities, then in such case any Options or Convertible Securities, as the case may be, issuable in payment of such dividend or distribution shall be deemed to have been issued or sold without consideration.

     (9) For purposes of this Paragraph 3.1, in case the Company shall take a record of the holders of its Common Stock for the purpose of entitling them (x) to receive a dividend or other distribution payable in Common Stock, Options or in Convertible Securities, or (y) to subscribe for or purchase Common Stock, Options or Convertible Securities, then such record date shall be deemed to be the date of the issue or sale of the shares of Common Stock deemed to have been issued or sold upon the declaration of such dividend or the making of such other distribution or the date of the granting of such right or subscription or purchase, as the case may be.

     3.2 Dividends Not Paid Out of Earnings or Earned Surplus. In the event the Company shall declare a dividend upon the Common Stock (other than a dividend payable in Common Stock) payable otherwise than out of earnings or earned surplus, determined in accordance with generally accepted accounting principles, including the making of appropriate deductions for minority interests, if any, in subsidiaries (herein referred to as “Liquidating Dividends”), then, as soon as possible after the exercise of this Warrant, the Company shall pay to the person exercising such Warrant an amount equal to the aggregate value at the time of such exercise of all Liquidating Dividends (including but not limited to the Common Stock which would have been issued at the time of such earlier exercise and all other securities which would have been issued with respect to such Common Stock by reason of stock splits, stock dividends, mergers or reorganizations, or for any other reason). For the purposes of this Paragraph 3.2, a

5

dividend other than in cash shall be considered payable out of earnings or earned surplus only to the extent that such earnings or earned surplus are charged an amount equal to the fair value of such dividend as determined in good faith by the Board of Directors of the Company.

     3.3 Subdivisions and Combinations. In case the Corporation shall at any time (i) subdivide the outstanding Common Stock or (ii) issue a stock dividend on its outstanding Common Stock, the Purchase Price in effect immediately prior to such subdivision or dividend shall be proportionately reduced by the same ratio as the subdivision or dividend. In case the Corporation shall at any time combine its outstanding Common Stock, the Purchase Price in effect immediately prior to such combination shall be proportionately increased by the same ratio as the combination.

     3.4 Reorganization, Reclassification, Consolidation, Merger or Sale of Assets. If any capital reorganization or reclassification of the capital stock of the Company, or consolidation or merger of the Company with another corporation, or the sale of all or substantially all of its assets to another corporation shall be effected in such a way that holders of Common Stock shall be entitled to receive stock, securities, cash or other property with respect to or in exchange for Common Stock, then, as a condition of such reorganization, reclassification, consolidation, merger or sale, lawful and adequate provision shall be made whereby the holder of this Warrant shall have the right to acquire and receive upon exercise of this Warrant such shares of stock, securities, cash or other property issuable or payable (as part of the reorganization, reclassification, consolidation, merger or sale) with respect to or in exchange for such number of outstanding shares of the Company’s Common Stock as would have been received upon exercise of this Warrant at the Purchase Price then in effect. The Company will not effect any such consolidation, merger or sale, unless prior to the consummation thereof the successor corporation (if other than the Company) resulting from such consolidation or merger or the corporation purchasing such assets shall assume by written instrument mailed or delivered to the holder of this Warrant at the last address of such holder appearing on the books of the Company, the obligation to deliver to such holder such shares of stock, securities or assets as, in accordance with the foregoing provisions, such holder may be entitled to purchase. If a purchase, tender or exchange offer is made to and accepted by the holders of more than 50% of the outstanding shares of Common Stock of the Company, the Company shall not effect any consolidation, merger or sale with the person having made such offer or with any Affiliate of such person, unless prior to the consummation of such consolidation, merger or sale the holder of this Warrant shall have been given a reasonable opportunity to then elect to receive upon the exercise of this Warrant either the stock, securities or assets then issuable with respect to the Common Stock of the Company or the stock, securities or assets, or the equivalent, issued to previous holders of the Common Stock in accordance with such offer. For purposes hereof the term “Affiliate” with respect to any given person shall mean any person controlling, controlled by or under common control with the given person.

     3.5 No Adjustment for Exercise of Certain Options, Warrants, Etc. The provisions of this Section 3 shall not apply to any Common Stock issued, issuable or deemed outstanding under subparagraphs 3.1(1) to (9) inclusive: (i) to any person pursuant to any stock option, stock purchase or similar plan or arrangement for the benefit of employees, consultants or directors of the Company or its subsidiaries in effect on the date of issuance hereof, (ii) pursuant to options,

6

warrants and conversion rights in existence on the date of issuance hereof or (iii) on conversion of the Class B Common Stock.

     3.6 Notices of Record Date, Etc. In the event that:

     (1) the Company shall declare any cash dividend upon its Common Stock, or

     (2) the Company shall declare any dividend upon its Common Stock payable in stock or make any special dividend or other distribution to the holders of its Common Stock, or

     (3) the Company shall offer for subscription pro rata to the holders of its Common Stock any additional shares of stock of any class or other rights, or

     (4) there shall be any capital reorganization or reclassification of the capital stock of the Company, including any subdivision or combination of its outstanding shares of Common Stock, or consolidation or merger of the Company with, or sale of all or substantially all of its assets to, another corporation, or

     (5) there shall be a voluntary or involuntary dissolution, liquidation or winding up of the Company; then, in connection with such event, the Company shall give to the holder of this Warrant:

     (ii) at least twenty (20) days’ prior written notice of the date on which the books of the Company shall close or a record shall be taken for such dividend, distribution or subscription rights or for determining rights to vote in respect of any such reorganization, reclassification, consolidation, merger, sale, dissolution, liquidation or winding up; and

     (iii) in the case of any such reorganization, reclassification, consolidation, merger, sale, dissolution, liquidation or winding up, at least twenty (20) days’ prior written notice of the date when the same shall take place. Such notice in accordance with the foregoing clause (i) shall also specify, in the case of any such dividend, distribution or subscription rights, the date on which the holders of Common Stock shall be entitled thereto, and such notice in accordance with the foregoing clause (ii) shall also specify the date on which the holders of Common Stock shall be entitled to exchange their Common Stock for securities or other property deliverable upon such reorganization, reclassification, consolidation, merger, sale, dissolution, liquidation or winding up, as the case may be. Each such written notice shall be given by first class mail, postage prepaid, addressed to the holder of this Warrant at the address of such holder as shown on the books of the Company.

     3.7 Grant, Issue or Sale of Options, Convertible Securities, or Rights. If at any time or from time to time on or after the date of issuance hereof, the Company shall grant, issue or sell any Options, Convertible Securities or rights to purchase property (the “Purchase Rights”) pro rata to the record holders of any class of Common Stock of the Company and such grants, issuances or sales do not result in an adjustment of the Purchase Price under Paragraph 3.1 hereof, then the holder of this Warrant shall be entitled to acquire (within thirty (30) days after the later to occur of the initial exercise date of such Purchase Rights or receipt by such holder of the notice concerning Purchase Rights to which such holder shall be entitled under Paragraph 3.6) and upon the terms applicable to such Purchase Rights either:

7

     (i) the aggregate Purchase Rights which such holder could have acquired if it had held the number of shares of Common Stock acquirable upon exercise of this Warrant immediately before the grant, issuance or sale of such Purchase Rights; provided that if any Purchase Rights were distributed to holders of Common Stock without the payment of additional consideration by such holders, corresponding Purchase Rights shall be distributed to the exercising holder of this Warrant as soon as possible after such exercise and it shall not be necessary for the exercising holder of this Warrant specifically to request delivery of such rights; or

     (ii) in the event that any such Purchase Rights shall have expired or shall expire prior to the end of said thirty (30) day period, the number of shares of Common Stock or the amount of property which such holder could have acquired upon such exercise at the time or times at which the Company granted, issued or sold such expired Purchase Rights.

     3.8 Adjustment by Board of Directors. If any event occurs as to which, in the opinion of the Board of Directors of the Company, the provisions of this Section 3 are not strictly applicable or if strictly applicable would not fairly protect the rights of the holder of this Warrant in accordance with the essential intent and principles of such provisions, then the Board of Directors shall make an adjustment in the application of such provisions, in accordance with such essential intent and principles, so as to protect such rights as aforesaid, but in no event shall any adjustment have the effect of increasing the Purchase Price as otherwise determined pursuant to any of the provisions of this Section 3 except in the case of a combination of shares of a type contemplated in Paragraph 3.3 and then in no event to an amount larger than the Purchase Price as adjusted pursuant to Paragraph 3.3.

     3.9 Fractional Shares. The Company shall not issue fractions of shares of Common Stock upon exercise of this Warrant or scrip in lieu thereof. If any fraction of a share of Common Stock would, except for the provisions of this Paragraph 3.9, be issuable upon exercise of this Warrant, the Company shall in lieu thereof pay to the person entitled thereto an amount in cash equal to the current value of such fraction, calculated to the nearest one-hundredth (1/100) of a share, to be computed (i) if the Common Stock is listed on any national securities exchange on the basis of the last sales price of the Common Stock on such exchange (or the quoted closing bid price if there shall have been no sales) on the date of conversion, or (ii) if the Common Stock shall not be listed, on the basis of the mean between the closing bid and asked prices for the Common Stock on the date of conversion as reported by NASDAQ, or its successor, and if there are not such closing bid and asked prices, on the basis of the fair market value per share as determined by the Board of Directors of the Company.

     3.10 Officers’ Statement as to Adjustments. Whenever the Purchase Price shall be adjusted as provided in Section 3 hereof, the Company shall forthwith file at each office designated for the exercise of this Warrant, a statement, signed by the Chairman of the Board, the President, any Vice President or Treasurer of the Company, showing in reasonable detail the facts requiring such adjustment and the Purchase Price that will be effective after such

8

adjustment. The Company shall also cause a notice setting forth any such adjustments to be sent by mail, first class, postage prepaid, to the record holder of this Warrant at his or its address appearing on the stock register. If such notice relates to an adjustment resulting from an event referred to in Paragraph 3.6, such notice shall be included as part of the notice required to be mailed and published under the provisions of Paragraph 3.6 hereof.

     4. NO DILUTION OR IMPAIRMENT. The Company will not, by amendment of its charter or through reorganization, consolidation, merger, dissolution, sale of assets or any other voluntary action, avoid or seek to avoid the observance or performance of any of the terms of this Warrant, but will at all times in good faith assist in the carrying out of all such terms and in the taking of all such action as may be necessary or appropriate in order to protect the rights of the holder hereof against dilution or other impairment. Without limiting the generality of the foregoing, the Company will not increase the par value of any shares of stock receivable upon the exercise of this Warrant above the amount payable therefor upon such exercise, and at all times will take all such action as may be necessary or appropriate in order that the Company may validly and legally issue fully paid and non-assessable stock upon the exercise of this Warrant.

     5. RESERVATION OF STOCK, ETC., ISSUABLE ON EXERCISE OF WARRANTS. The Company shall at all times reserve and keep available out of its authorized but unissued stock, solely for the issuance and delivery upon the exercise of this Warrant and other similar Warrants, such number of its duly authorized shares of Common Stock as from time to time shall be issuable upon the exercise of this Warrant and all other similar Warrants at the time outstanding.

     6. REPLACEMENT OF WARRANT. Upon receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Warrant and (in the case of loss, theft or destruction) upon delivery of an indemnity agreement (with surety if reasonably required) in an amount reasonably satisfactory to it, or (in the case of mutilation) upon surrender and cancellation thereof, the Company will issue, in lieu thereof, a new Warrant of like tenor.

     7. REMEDIES. The Company stipulates that the remedies at law of the holder of this Warrant in the event of any default by the Company in the performance of or compliance with any of the terms of this Warrant are not and will not be adequate, and that the same may be specifically enforced.

     8. NEGOTIABILITY, ETC. This Warrant is issued upon the following terms, to all of which each taker or owner hereof consents and agrees:

     (a) Subject to the legend appearing on the first page hereof, title to this Warrant may be transferred by endorsement (by the holder hereof executing the form of assignment at the end hereof including guaranty of signature) and delivery in the same manner as in the case of a negotiable instrument transferable by endorsement and delivery.

     (b) Any person in possession of this Warrant properly endorsed is authorized to represent himself as absolute owner hereof and is granted power to transfer absolute title hereto by endorsement and delivery hereof to a bona fide purchaser hereof for value; each prior taker or

9

owner waives and renounces all of his equities or rights in this Warrant in favor of every such bona fide purchaser, and every such bona fide purchaser shall acquire title hereto and to all rights represented hereby.

     (c) Until this Warrant is transferred on the books of the Company, the Company may treat the registered holder of this Warrant as the absolute owner hereof for all purposes without being affected by any notice to the contrary.

     (d) Prior to the exercise of this Warrant, the holder hereof shall not be entitled to any rights of a shareholder of the Company with respect to shares for which this Warrant shall be exercisable, including, without limitation, the right to vote, to receive dividends or other distributions or to exercise any preemptive rights, and shall not be entitled to receive any notice of any proceedings of the Company, except as provided herein.

     (e) The Company shall not be required to pay any Federal or state transfer tax or charge that may be payable in respect of any transfer involved in the transfer or delivery of this Warrant or the issuance or conversion or delivery of certificates for Common Stock in a name other than that of the registered holder of this Warrant or to issue or deliver any certificates for Common Stock upon the exercise of this Warrant until any and all such taxes and charges shall have been paid by the holder of this Warrant or until it has been established to the Company’s satisfaction that no such tax or charge is due.

     9. SUBDIVISION OF RIGHTS. This Warrant (as well as any new warrants issued pursuant to the provisions of this paragraph) is exchangeable, upon the surrender hereof by the holder hereof, at the principal office of the Company for any number of new warrants of like tenor and date representing in the aggregate the right to subscribe for and purchase the number of shares of Common Stock of the Company which may be subscribed for and purchased hereunder.

     10. MAILING OF NOTICES, ETC. All notices and other communications from the Company to the holder of this Warrant shall be mailed by first-class certified mail, postage prepaid, to the address furnished to the Company in writing by the last holder of this Warrant who shall have furnished an address to the Company in writing.

     11. HEADINGS, ETC. The headings in this Warrant are for purposes of reference only, and shall not limit or otherwise affect the meaning hereof.

     12. CHANGE, WAIVER, ETC. Neither this Warrant nor any term hereof may be changed, waived, discharged or terminated orally but only by an instrument in writing signed by the party against which enforcement of the change, waiver, discharge or termination is sought.

     13. GOVERNING LAW. THIS WARRANT SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE.

10

NEUSTAR, INC.
By:	/s/ Jeffrey E. Ganek
	Name:	Jeffrey E. Ganek
	Title:	Chairman and Chief Executive Officer

Date of Original Warrant:	December 7, 1999
Date of Replacement Warrant:	September 30, 2005
Attest:

/s/ Martin K. Lowen
Name:	Martin K. Lowen
Title:	Sr. Vice President and General Counsel

11

[To be signed only upon exercise of Warrant]

To NeuStar, Inc.:

     The undersigned, the holder of the within Warrant, hereby irrevocably elects to exercise the purchase right represented by such Warrant for, and to purchase thereunder,       shares of Common Stock of NeuStar, Inc. and herewith makes payment of $        therefor, and requests that the certificates for such shares be issued in the name of, and be delivered to , whose address is .

Dated:

_____________________________

________________________________________

(Signature must conform in all respects to name of Holder as specified on the face of the Warrant)

________________________________________

Address                                   

12

[To be signed only upon transfer of Warrant]

     FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto           the right represented by the within Warrant to purchase the           shares of the Common Stock of NeuStar, Inc. to which the within Warrant relates, and appoints           attorney to transfer said right on the books of NeuStar, Inc. with full power of substitution in the premises.

Dated:

_____________________________

________________________________________

(Signature must conform in all respects to name of Holder as specified on the face of the Warrant)

|
  ________________________________________

Address                                   

In the presence of

_____________________________

13

EX-10.3.3

Exhibit 10.3.3.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE Page
1 of 2

2. AMENDMENT/MODIFICATION NO.
    0006 3. EFFECTIVE DATE
    10/06/2005 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable)

6. ISSUED BY
FCC /Contracts and Purchasing Center
445 12th St., SW,
Washington, DC 20554 CODE  |   00001 7. ADMINISTERED BY (If other than Item 6) CODE  |      

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and Zip Code)		9A. AMENDMENT OF SOLICITATION NO.
		9B. DATED (SEE ITEM 11)
Neustar, Inc. 46000 Center Oak Plaza Sterling, VA 20166	þ	10A. MODIFICATION OF CONTRACT/ORDER NO. CON03000016
	þ	10B. DATED (SEE ITEM 13)

CODE * FACILITY CODE

11.THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

o	The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers       o is extended,       o is not extended.
	Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:
	(a) By completing Items 8 and 15, and returning _______ copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12.	ACCOUNTING AND APPROPRIATION DATA (If required)
	No Funding Information

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS.
IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

CHECK ONE o	A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.
o	B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).
o	C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:
o	D. OTHER (Specify type of modification and authority)

E. IMPORTANT:    Contractor    þ   is not,   o   is required to sign this document and return ___copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

THE ABOVE NUMBERED CONTRACT IS HEREBY MODIFIED TO:

1) TO ACCEPT CHANGE ORDER #37 AT A COST OF $1,358.00. COPY OF CHANGE ORDER IS ATTACHED.

     ALL OTHER TERMS AND CONDITIONS REMAIN THE SAME.

Except as provided herein, all terms and conditions of the document referenced in item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)		16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print) Dennis O. Dorsey
15B.CONTRACTOR/OFFEROR ___________________________________________      (Signature of person authorized to sign)	15C. DATE SIGNED	16B. United States of America By   Dennis O. Dorsey                                  (Signature of Contracting Oficer)	16C. DATE SIGNED 10/6/05

NSN 7540-01-152-8070	STANDARD FORM 30 (REV. 10-83)
PREVIOUS EDITION	Prescribed by GSA FAR (48 CFR)
UNUSABLE	53.243

Line Item Summary		Document Number CON03000016/0006		Title NANP Administrator				Page 2 of 2
Line Item Number	Description		Delivery Date (Start date to End date)		Quantity	Unit of Issue	Unit Price	Total Cost
	No Changed Line Item Fields				Previous Total: Modification Total: Grand Total:

National Pooling Administration

Change Order Proposal #37

(INC Issue #458 — “Reduce Aging Period for
“Returned/Reclaimed Blocks”)

December 7, 2004

NeuStar, Inc.	46000 Center Oak Plaza
	Sterling VA, 20166

Nat’l PAS — Change Order #37 (INC Issue 458) December 7, 2004

Table of Contents

1	Introduction	3
2	Industry Numbering Committee’s Proposed Change	4
3	The Proposal	5
4	Assumptions and Risks	5
5	Cost	5
6	Conclusion	5

© NeuStar, Inc. 2004 NeuStar Proprietary and Confidential -ii-

Nat’l PAS — Change Order #37 (INC Issue 458) December 7, 2004

1 Introduction

1.1 Purpose and Scope

In accordance with NeuStar’s National Pooling Administration contract¹ and our constant effort to provide the best support and value to both the FCC and the telecommunications industry, NeuStar, as the National Pooling Administrator (PA), hereby submits this Change Order Proposal to the Federal Communications Commission (FCC) for approval. This change order complies with the contractual requirements set forth in Attachment B, Section C of the Thousands-Block Pooling Contractor Technical Requirements, dated November 30, 2000, Sections 2.5 through 2.5.4, which read as follows:

2.5 Changes in the Environment

The FCC may issue rules, requirements, or policy directives in the future, which may increase, decrease or otherwise modify the functions to be performed by the contractor. The contractor is additionally subject to the provisions of the changes clause in Section I.

2.5.1 Process

Accordingly, after a contractor is selected, the FCC, the NANC and/or the INC may establish NANP numbering resource plans, administrative directives, assignment guidelines (including modifications to existing assignment guidelines), and procedures that may have an effect on the functions performed by the contractor.

2.5.2 Changes

The contractor shall review changes when numbering resource plans, administrative directives, assignment guidelines, and procedures are initiated or modified to determine if there is any impact on the functions that they must perform.

2.5.3 Notifications

The contractor shall then, within a period of not more than 30 calendar days from said event (e.g., the date INC places an issue into Final Closure), provide the Contracting Officer, state PUCs, and the NANC with written notice regarding these changes and summarize the potential impact of the changes upon service and cost, if any.

2.5.4 Roles

The NANC shall review the notice and provide a recommendation to the FCC regarding the effect of the contractor’s notice and supporting documentation.

The contractor shall comply with state regulatory decisions, rules and orders with respect to pooling, as applicable, as long as they are not in conflict with FCC decisions, orders, and rules and are within state jurisdiction.

¹FCC Contract Number CON01000016

© NeuStar, Inc. 2004 NeuStar Proprietary and Confidential -3-

Nat’l PAS — Change Order #37 (INC Issue 458) December 7, 2004

This document provides the information required by the contract, such as identifying the new requirements of the expanded scope of work, offering our proposed solution, and addressing its cost, risks, and assumptions as a result of the Industry Numbering Committee’s (INC) disposition of Issue 458 on November 12, 2004.

2 Industry Numbering Committee’s Proposed Change

According to Section 9.2.4 of the Thousands-Block Number (NXX-X) Pooling Administration Guidelines, the aging period for returned or reclaimed thousands-blocks, is 90 days. After this 90-day aging period, blocks are made available for reassignment. On November 12, 2004, INC placed Issue 458 into Final Closure. As a result of INC Issue 458, the aging period in the guidelines is being reduced from 90 days to 45 days. Therefore, PAS will need to be modified to compensate for this reduction in the aging period.

INC Issue 458 Reduce Aging Period for Returned/Reclaimed Blocks

Quoted below are the INC official issue statement and final resolution, which can also be found on the ATIS website (http://www.atis.org):

A) Issue Statement

At INC 77, the INC received a request from the NANC’s Numbering Oversight Working Group (NOWG) to provide input to the NOWG’s upcoming review of the Pooling Administrator (PA) Technical Requirements. In CS-098, dated August 24, 2004, the INC provided four suggestions to the NOWG, including a suggestion to “Age returned blocks only 45 days instead of 90 days.” Verizon Wireless took an action item to bring in a new issue and contribution to INC so that the associated guidelines changes could be made.

Occasionally an SP may need to exchange a block with the industry inventory pool, and while there may not be other blocks immediately available for assignment, there may be blocks being “aged” by the PA that were recently returned or reclaimed. Allowing those returned or reclaimed blocks to be made available for assignment more quickly may assist SPs when they need to exchange a block, and may assist the PA in avoiding opening a new code to meet SP demand. The current TBPAG requires that recently returned or reclaimed blocks be aged for 90 days, but 45 days should be sufficient to allow the LERG Assignee time to modify its translations to provide vacant number treatment for the block by the LERG effective date of the disconnect.

B) Following Resolution from INC

The following text changes were made to the TBPAG, section 9.2.4:

9.2.4      The PA must also notify and coordinate with the LERG Assignee in advance of the thousands-block return Effective Date to allow sufficient

© NeuStar, Inc. 2004 NeuStar Proprietary and Confidential -4-

Nat’l PAS — Change Order #37 (INC Issue 458) December 7, 2004

time for the LERG Assignee to update switch translations in order to provide blank number treatment for the returned thousands-block(s). The PA will make the thousands-block available for reassignment after 45 calendar days.

3 The Proposal

NeuStar’s National Pooling Administrator has reviewed INC Issue 458 from both the operational and technical perspectives. The proposal set forth below will conform to the changes in the INC guidelines and meet the requirements of the industry in a cost-effective and efficient manner.

Solution

Presently the aging period for returned/reclaimed thousands-blocks according to Section 9.2.4 of the Thousands-Block Number (NXX-X) Pooling Administration Guidelines is 90 days. After this 90-day aging period, blocks are made available for re-assignment. The resolution of INC Issue 458 reduced the aging period from 90 days to 45 days. Therefore, PAS will need to be modified to similarly reduce the aging period for returned or reclaimed thousands-blocks from 90 days to 45 days from the effective date of the return or reclamation.

4 Assumptions and Risks

Part of the PA’s assessment of this change order is to identify the associated assumptions and consider the risks that can have an impact on our operations.

This Change Order affects only the system, and would have no impact on our day-to-day operations.

5 Cost

As with any change order proposal, we also considered the associated costs that would potentially be incurred in implementing the proposed solution. These costs include the resources required to complete the milestones on a timeline for implementing the processes and system delineated in this change order. The timeline includes preparation, proper documentation updates, development, testing, monitoring, and execution of the solution.

The cost to implement our proposed solution would be $1,358.00.

6 Conclusion

In conclusion, the Pooling Administrator offers this viable solution to conform the PAS to INC Issue 458, and in accordance with contract terms, requests that the FCC review and approve this change order.

© NeuStar, Inc. 2004 NeuStar Proprietary and Confidential -5-

EX-10.5.1

Exhibit 10.5.1

SCHEDULE
Item No.	Supplies/Services	Quantity		Unit	Unit Price		Amount
0001	BASE PERIOD		4	YR		0.00		0.00
	The Contractor must perform the services required by the SOW. Period of Performance: 4 years, beginning on the date of purchase order award
0002	OPTION PERIOD ONE		1	YR		0.00		0.00
	The Contractor must perform the services required by the SOW. Period of Performance: 365 days, beginning the day after the Base Period expires
0003	OPTION PERIOD TWO		1	YR		0.00		0.00
	The Contractor must perform the services required by the SOW.
	Period of Performance: 365 days, beginning the day after Option Period One expires

1.	To approve the “.US Locality Space Delegated Manager Policy” and the .US Delegated Manager Agreement dated September 15, 2005. The agreement is effective with the fully executed date of this modification.
2.	To approve the policy on “Transfer of Sponsorship of Registrations between Registrars” dated September 15, 2005.
3.	This modification is also being issued to implement the following set of measurable objectives and milestones designed to introduce in the .us domain new applications and technical innovations, thereby enhancing the domain’s visibility, utility, and value to the American public. These enhancements will be made directly by NeuStar or through the engagement of a business partner. Reasonable fees may be charged for each service, upon prior approval of the Contracting Officer. The following is the contract modification language covering service enhancements to the .US space:
	Development of services for certain public resource second level domains (engagement of business partners to build enhanced uses for these names by December 1, 2005, and launch of first second level domain and related services by May 15, 2006).
	Development of a .us-specific directory search engine (partnership with an established provider of directory services and search engine services by January 15, 2006, and launch of searching capability by June 15, 2006).
	Development of a secure platform for e-government initiatives that would allow citizens to communicate and to interact with the U.S. Government in a direct and safe forum (continued discussions with the Internet Engineering and Planning Group and the DNSSEC Deployment Group, with initiation of next DNSSEC trial by March 15, 2006, and targeted launch of platform, by September 15, 2006).
	Deletion of Section: Personal Identification Applications and Section: Location-Based Services of PART D, NEUSTAR RESPONSE TO SB1335-01-Q-0740.
4.	Pricing

To approve the Contractor’s proposed price increase of $0.50 per domain name year, from $5.50 to $6.00 per domain transaction. This increase would apply to all .US domains, effective December 1, 2005 or +60 days from the date of this modification, whichever comes first.

EX-10.5.2

Exhibit 10.5.2

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE Page of Pages
1            3

2. AMENDMENT/MODIFICATION NO.
    0016 3. EFFECTIVE DATE
    Oct 25, 2005 4. REQUISITION/PURCHASE REQ. NO.
   NT1A911-6-0233ML 5. PROJECT NO. (If applicable)

6. ISSUED BY
DOC/NOAA/AGO
Staff Office & External Clients, AD
1305 East West Highway, Rm 7601
Silver Spring, MD 20910
JOEL L. PERLROTH 301-713-0838x205 CODE  |   F600120I 7. ADMINISTERED BY (If other than Item 6)
SEE BLOCK 6 CODE  |      

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, and Zip Code)		þ	9A. AMENDMENT OF SOLICITATION NO.
			9B. DATE (SEE ITEM 11)
NEUSTAR, INC 46000 CENTER OAK PLAZA STERLING VA 201666593	Vendor ID: 00000190 DUNS: 112403295 CAGE: 3DXC3	þ	10A. MODIFICATION OF CONTRACT/ORDER NO. SB1335-02-W-0175
			10B. DATE (SEE ITEM 13) Oct 26, 2001

CODE FACILITY CODE

11.THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

o The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers       o is extended,       o is not extended. Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: (a) By completing Items 8 and 15, and returning _______ copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12.	ACCOUNTING AND APPROPRIATION DATA (If required)
	$US          0.00

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT/ORDERS.
IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

þ A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO. IN ITEM 10A.
 

o B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).
 

o C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:
 

þ D. OTHER (Specify type of modification and authority)
     FAR 52.217-9 Option to Extend the Term of the Contract (MAR 2000)

E. IMPORTANT:    Contractor    þ   is not,   o   is required to sign this document and return ___copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Modification No.: 0016 is being issued to accomplish the following:

1. To change the Point of Contact to Ms. Maureen Lewis. Her address is as follows:

U. S. Department of Commerce
National Telecommunications and Information Administration
1401 Constitution Avenue, N.W. Room 4888
Washington, D.C. 20230

Except as provided herein, all terms and conditions of the document referenced in item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)		16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print) JOEL L. PERLROTH            301-713-0838 x205 Contracting Officer Joel.L.Perlroth@noaa.gov
15B.CONTRACTOR/OFFEROR ___________________________________________      (Signature of person authorized to sign)	15C. DATE SIGNED	16B. United States of America By   /s/ JOEL L. PERLROTH                               (Signature of Contracting Oficer)	16C. DATE SIGNED 10/25/2005

NSN 7540-01-152-8070	30-105	STANDARD FORM 30 (REV. 10-83)
PREVIOUS EDITIONS		Prescribed by GSA FAR (48 CFR)
UNUSABLE		53.243

SF30 Continuation of Block Narrative Page 2 of 3

Phone 202-482-1892

2. To exercise the next years option for the period October 26, 2005 through October 25, 2006 in accordance with FAR 52.217-9 Option to Extend the Term of the Contract (MAR 2000).

SCHEDULE
Item No.	Supplies/Services	Quantity		Unit	Unit Price		Amount
0002	OPTION PERIOD ONE The Contractor must perform the services required by the SOW. Period of Performance: 365 days, beginning the day after the Base Period expires		1	YR		0.00		0.00

EX-31.1

Exhibit 31.1

CERTIFICATION

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Jeffrey E. Ganek, certify that:

1. I have reviewed this quarterly report on Form 10-Q of NeuStar, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
b.	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
c.	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

November 10, 2005	/s/ Jeffrey E. Ganek
	Jeffrey E. Ganek
	Chairman and Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Jeffrey A. Babka, certify that:

1. I have reviewed this quarterly report on Form 10-Q of NeuStar, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
b.	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
c.	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

November 10, 2005	/s/ Jeffrey A. Babka
	Jeffrey A. Babka
	Chief Financial Officer (Principal Accounting Officer)

EX-32.1

EXHIBIT 32.1

CERTIFICATION
PURSUANT TO 18 U.S.C. 1350

Pursuant to 18 U.S.C. 1350, each of the undersigned certifies that, to the best of his knowledge:

1. The quarterly report on Form 10-Q of NeuStar, Inc. for the quarter ended September 30, 2005 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. Information contained in such quarterly report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of NeuStar, Inc.

November 10, 2005	By:	/s/ Jeffrey E. Ganek
		Jeffrey E. Ganek
		Chief Executive Officer
November 10, 2005	By:	/s/ Jeffrey A. Babka
		Jeffrey A. Babka
		Chief Financial Officer

     A signed original of this written statement has been provided to NeuStar, Inc. and will be retained by NeuStar, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.