10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended March 31, 2006

Commission file number 0-24061

US LEC Corp.

(Exact name of registrant as specified in its charter)

Delaware	56-2065535
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)

Morrocroft III, 6801 Morrison Boulevard
Charlotte, North Carolina 28211
(Address of principal executive offices)(Zip Code)

(704) 319-1000
(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

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 a large accelerated filer, an accelerated filer or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act:

Large Accelerated Filer o Accelerated Filer o Non-Accelerated Filer þ

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

As of May 12, 2006, there were 30,793,154 shares of Class A Common Stock outstanding.

US LEC Corp.

Table of Contents

	Page
PART I. FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS
Condensed Consolidated Statements of Operations – Three months ended March 31, 2006 and 2005		3
Condensed Consolidated Balance Sheets – March 31, 2006 and December 31, 2005		4
Condensed Consolidated Statements of Cash Flows – Three months ended March 31, 2006 and 2005		5
Condensed Consolidated Statement of Stockholders’ Deficiency – Three months ended March 31, 2006		6
Notes to Condensed Consolidated Financial Statements		7
ITEM 1A. RISK FACTORS		16
ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS		20
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK		26
ITEM 4. CONTROLS AND PROCEDURES		26
PART II. OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS		27
ITEM 6. EXHIBITS		27
EX-10.1
EX-10.2
EX-31.1
EX-31.2
EX-32.1
EX-32.2

2

PART 1. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

US LEC Corp. and Subsidiaries

Condensed Consolidated Statements of Operations

(In Thousands, Except Per Share Data)

(Unaudited)

	Three months
	ended March 31,
	2006			2005
Revenue	$	102,797		$	93,516
Network expenses (excluding depreciation and amortization shown below)		50,250			45,784
Depreciation and amortization		12,194			12,931
Selling, general and administrative expenses (excluding stock-based compensation expense shown below)		37,802			35,868
Stock-based compensation expense		717			—
Income (Loss) from Operations		1,834			(1,067	)
Other (Income) Expense
Interest income		(306	)		(244	)
Interest expense		4,851			3,956
Net Loss		(2,711	)		(4,779	)
Less: Preferred stock dividends		4,218			3,974
Less: accretion of preferred stock issuance costs		162			152
Net Loss Attributable to Common Stockholders	$	(7,091	)	$	(8,905	)
Net Loss Attributable to Common Stockholders Per Common Share
Basic and Diluted	$	(0.23	)	$	(0.29	)
Weighted Average Number of Shares Outstanding
Basic and Diluted		30,751			30,255

See notes to condensed consolidated financial statements

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US LEC Corp. and Subsidiaries

Condensed Consolidated Balance Sheets

(In Thousands)

	(Unaudited)
	March			December 31,
	2006			2005
Assets
Current Assets
Cash and cash equivalents	$	36,681		$	30,704
Restricted cash		67			67
Accounts receivable (net of allowance of $10,442 and $10,349 at March 31, 2006 and December 31, 2005, respectively)		41,873			49,841
Prepaid expenses and other assets		9,383			9,289
Total current assets		88,004			89,901
Property and Equipment, Net		138,903			144,350
Deferred income taxes		2,811			2,792
Other Assets		14,866			15,309
Total Assets	$	244,584		$	252,352
Liabilities and Stockholders’ Deficit
Current Liabilities
Accounts payable	$	6,660		$	9,125
Accrued network costs		16,719			20,252
Commissions payable		1,143			984
Accrued expenses – other		32,389			31,567
Deferred revenue		13,892			14,292
Deferred income taxes		2,811			2,792
Total current liabilities		73,614			79,012
Long-Term Debt		149,475			149,438
Other Liabilities		5,462			5,879
Commitments and Contingencies
Series A Mandatorily Redeemable Convertible Preferred Stock		282,416			278,037
Stockholders’ Deficit
Common stock – Class A, $.01 par value (122,925 authorized shares, 30,753 and 30,751 shares outstanding at March 31, 2006 and December 31, 2005)		308			307
Additional paid-in capital		96,469			93,181
Unearned stock-based compensation		(2,567	)		—
Accumulated deficit		(360,593	)		(353,502	)
Total stockholders’ deficit		(266,383	)		(260,014	)
Total Liabilities, Convertible Preferred Stock and Stockholders’ Deficit	$	244,584		$	252,352

See notes to condensed consolidated financial statements

4

US LEC Corp. and Subsidiaries

Condensed Consolidated Statements of Cash Flows

(In Thousands)

(Unaudited)

	Three Months Ended
	March 31,
	2006			2005
Operating Activities
Net Loss	$	(2,711	)	$	(4,779	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		12,194			12,931
Accretion of debt		37			37
Accretion of lease exit costs		18			17
Other income		28			51
Stock-based compensation expense		717			—
Changes in operating assets and liabilities:
Accounts receivable		7,933			(3,791	)
Prepaid expenses and other assets		206			794
Other assets		(268	)		126
Accounts payable		(784	)		(576	)
Deferred revenue		(399	)		(43	)
Accrued network costs		(3,533	)		995
Customer commissions payable		159			(992	)
Other liabilities		(435	)		(355	)
Accrued expenses — other		810			1,543
Total adjustments		16,683			10,737
Net cash provided by operating activities		13,972			5,958
Investing Activities
Purchase of property and equipment		(7,692	)		(9,323	)
Net assets acquired		(1	)		(5	)
Notes receivable		(300	)
Net cash used in investing activities		(7,993	)		(9,328	)
Financing Activities
Payments on notes payable		—			(980	)
Payment of deferred loan fees		(5	)		(46	)
Proceeds from issuance of stock options		4			24
Net cash used in financing activities		(1	)		(1,002	)
Net (Decrease) Increase in Cash and Cash Equivalents		5,978			(4,372	)
Cash and Cash Equivalents, Beginning of Period		30,703			48,232
Cash and Cash Equivalents, End of Period	$	36,681		$	43,860
Supplemental Cash Flow Disclosures
Cash Paid for Interest	$	16		$	18
Cash Paid for Income Taxes	$	—		$	—

See notes to condensed consolidated financial statements

5

US LEC Corp. and Subsidiaries

Condensed Consolidated Statement of Stockholders’ Deficiency

For the Three Months Ended March 31, 2006

(In Thousands)

(Unaudited)

							Unearned
	Class A Common Stock				Additional		Stock-based			Accumulated
	Shares		Amount		Paid-in Capital		Compensation			Deficit			Total
Balance, December 31, 2005		30,751	$	307	$	93,181	$	—		$	(353,502	)	$	(260,014	)
Unearned stock-based compensation						3,284		(3,284	)					—
Exercise of stock options		2		1		4								5
Stock-based compensation expense								717						717
Preferred stock dividends											(4,218	)		(4,218	)
Accretion of preferred stock issuance costs											(162	)		(162	)
Net loss											(2,711	)		(2,711	)
Balance, March 31, 2006		30,753	$	308	$	96,469	$	(2,567	)	$	(360,593	)	$	(266,383	)

See notes to condensed consolidated financial statements

6

US LEC Corp. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

(In Thousands, Except Per Share Data)

(Unaudited)

1. Basis of Presentation

     The accompanying unaudited condensed consolidated financial statements of US LEC Corp. and its subsidiaries (“US LEC” or the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X promulgated by the United States Securities and Exchange Commission (the “SEC”). Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation for the periods indicated have been included. Operating results for the three months ended March 31, 2006 are not necessarily indicative of the results that may be expected for the year ending December 31, 2006. The accompanying condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2005, which is on file with the SEC.

2. Significant Accounting Policies

     Other than the adoption of SFAS No. 123(R) discussed below, there have been no changes to the Company’s significant accounting policies as set forth in Note 2 to the audited consolidated financial statements in the Annual Report on Form 10-K for the year ended December 31, 2005.

     Use of Estimates - The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. Significant estimates relate to the allowance for doubtful accounts receivable, estimated end-customer contract life, accrual of network expenses payable to other telecommunications entities, income tax valuation allowance, and estimated useful lives of fixed assets. Any difference between the amounts recorded and amounts ultimately realized or paid will be adjusted prospectively as new facts or circumstances become known.

     Stock-based Compensation Expense - Prior to January 1, 2006 the Company measured the compensation cost of its stock plans under the provisions of Accounting Principles Board (“APB”) Opinion No. 25, “Accounting for Stock Issued to Employees”, as permitted under Statement of Financial Accounting Standards (“SFAS”) No. 123, “Accounting for Stock-Based Compensation”. Under the provisions of APB No. 25, compensation cost is measured based on the intrinsic value of the equity instrument awarded. Under the provisions of SFAS No. 123, compensation cost is measured based on the fair value of the equity instrument awarded.

     As of January 1, 2006, the Company adopted SFAS No. 123(R), “Share-Based Payment,” using the modified prospective transition method. Under this method, compensation expense is recognized for new grants beginning this fiscal year and any unvested grants prior to the adoption of SFAS No. 123(R). In accordance with this method financial statements for prior periods have not been restated.

     In February 2006 the Company announced a voluntary stock option exchange offer for current employees and eligible directors that were holding stock options granted prior to January 1, 2006 (the “2006 Exchange Offer”). The 2006 Exchange Offer expired on March 27, 2006. Immediately following the expiration of the 2006 Exchange Offer the Company granted new options for exchange and canceled the tendered options.

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Options covering a total of 4,321 shares were eligible for exchange in the offer. The Company accepted for exchange eligible options tendered to it for 3,721 shares of US LEC common stock and canceled all of these eligible options. The exercise price of the new options was $2.08, the average closing price per share of US LEC’s common stock on the NASDAQ National Market for the five consecutive trading days immediately before the date the new options were granted. Stock-based compensation expense for the quarter ended March 31, 2006 relating to stock options as calculated using SFAS No. 123R includes the impact of the 2006 Exchange Offer.

     The Company recognizes compensation expense on a straight-line basis over the optionee’s vesting period. Total stock-based compensation expense related to the Company’s stock option plan for the three months ended March 31, 2006 is $647 thousand.

     The summary of information relative to the Company’s stock option plan for the quarter ended March 31, 2006 is as follows:

	Options
	Number			Weighted		Weighted	Aggregate
	of			Avg. Exercise		Avg. Remaining	Intrinsic
	Options			Price / Option		Contractual Term	Value
Balance at December 31, 2005		4,903		$	3.90
Granted at FMV		4,317		$	2.08
Exercised		(2	)	$	2.08
Forfeited or cancelled		(3,755	)	$	4.08
Outstanding on March 31, 2006		5,463		$	2.34	9.5 years	$	2,831
Exercisable on March 31, 2006		2,216		$	2.61	9.1 years	$	1,012

The aggregate intrinsic value of options exercised during the quarter ended March 31, 2006 and 2005 was $1 thousand and $6 thousand respectively.

     As of March 31, 2006 there was $2.5 million of unrecognized compensation expense related to non-vested option awards that is expected to be recognized over a weighted average period of 2.9 years.

     The total number of options that vested not related to the 2006 Option Exchange during the quarter ended March 31, 2006 was 79 thousand with a total fair value of $193 thousand. The total number of options that vested related to the 2006 Option Exchange during the quarter ended March 31, 2006 was 1.6 million with a total net incremental fair value of $113 thousand. The weighted average grant date fair value of stock options granted not related to the 2006 Option Exchange during the quarter ended March 31, 2006 and 2005, was $1.60 and $1.95, respectively. The weighted average grant date fair value of stock options granted related to the 2006 Option Exchange during the quarter ended March 31, 2006 pre-modification and post-modification was $1.45 and $1.52, respectively. Forfeitures are estimated and based on historical experience.

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     The fair value of each option grant was determined using the Black-Scholes option pricing model with the following assumptions:

	Three Months Ended
	March 31,			March 31,
Black-Scholes Option Valuation Assumptions	2006			2005
Risk-free interest rate (1)		4.28% - 4.70	%		4.18	%
Expected term (years) (2)		5.56 - 6.25			5.20
Volatility (3)		87.2	%		80.0	%
Dividend yield (4)		0	%		0	%

(1)	Based on interpolation between Treasury Constant Maturity rates with maturities corresponding to the expected term of our stock options.
(2)	Represents the period of time that options granted are expected to be outstanding using the SAB 107 simplified method.
(3)	Expected stock price volatility is based on historical experience.
(4)	Assumes no dividend yield.

     The Company estimated the fair value of grants under its Employee Stock Purchase Plan (the “ESPP”) for the three months ended March 31, 2006 using the Black-Scholes model assuming no dividend yield, volatility of 57.6%, an average risk-free interest rate of 4.28%, and an expected life of 0.5 years. The stock-based compensation expense related to the Company’s ESPP for the three months ended March 31, 2006 is $70 thousand.

     Had compensation expense for the Company’s stock plans been determined consistent with the method of SFAS No. 123 for options granted as of the quarter ended March 31, 2005, the Company’s net loss and net loss per share would approximate the following pro forma amounts:

	Three months ended
	March 31, 2005
Net loss, as reported	$	(4,779	)
Preferred dividends		(3,974	)
Accretion of preferred stock issuance fees		(152	)
Net loss attributable to common stockholders, as reported	$	(8,905	)
Deduct: Total stock-based employee compensation expense determined under fair value based method for all awards, net of related tax effects		(605	)
Pro forma net loss	$	(9,510	)
Weighted average shares outstanding		30,255
Loss per share:
Basic and diluted, as reported	$	(0.29	)
Basic and diluted, pro forma	$	(0.31	)

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3. Long-Term Debt

     On September 30, 2004, the Company issued $150,000 in aggregate principal amount of Second Priority Senior Secured Floating Rate Notes due 2009 (the “Notes”) in a private placement to qualified institutional buyers. The Notes were issued at a price of 99.5% and bear interest at an annual rate of the six-month London Interbank Offered Rate (“LIBOR”) plus 8.50%. Interest is reset semi-annually and is payable on April 1 and October 1 of each year, beginning April 1, 2005. The interest rate for the six month period ending April 1, 2006 was 12.72%. The interest rate for the six month period ending October 1, 2006 which was set on April 1, 2006 is 13.62%. The maturity date of the Notes is October 1, 2009. The Notes are guaranteed by all of the Company’s subsidiaries and are secured on a second priority basis by substantially all of the assets of the Company and its subsidiaries, including the capital stock of the Company’s subsidiaries. The Company registered notes under the Securities Act of 1933 having terms substantially identical to the privately placed Notes and completed an exchange of the privately placed Notes for publicly registered notes in December 2004.

     The indenture governing the Notes contains covenants which, subject to certain exceptions, limit the ability of the Company and its subsidiaries to incur additional indebtedness, engage in certain asset sales, make certain types of restricted payments, engage in transactions with affiliates and create certain liens on the assets of the Company or its subsidiaries. Upon a change of control, the indenture requires the Company to make an offer to repurchase the Notes at 101% of the principal amount, plus accrued interest. The indenture allows the Company to redeem the Notes at redemption prices of 105.5%, 103.5% and 100.0% of the principal amount during the 12-month period beginning on October 1 of the years 2006, 2007 and 2008 and thereafter, respectively. Unamortized debt issuance fees related to the Notes are being amortized through the maturity date of October 1, 2009 and are $4,285 as of March 31, 2006.

     In October 2005, the Company entered into a $10,000 secured revolving credit facility. The credit facility matures in August 2009. The interest rate for any advances under the credit facility is a floating rate based, at the Company’s option, on either the lender’s prime rate plus .25% or the LIBOR, plus 2.25%. As of the date of this report there were no advances under the credit facility. The facility is secured by a first priority security interest in substantially all of the Company’s assets, including the stock of our subsidiaries.

4. Commitments and Contingencies

     The deregulation of the telecommunications industry, the implementation of the Telecommunications Act of 1996 (“Telecom Act”) and the distress of many carriers in the wake of the downturn in the telecommunications industry have involved numerous industry participants, including the Company, in disputes, lawsuits, proceedings and arbitrations before state and federal regulatory commissions, private arbitration organizations such as the American Arbitration Association, and courts over many issues important to the financial and operational success of the Company. These issues include the interpretation and enforcement of existing interconnection agreements, the terms of new interconnection agreements the Company may enter into, operating performance obligations, inter-carrier compensation, access rates applicable to different categories of traffic, including traffic originating from or terminating to cellular or wireless users, the jurisdiction of traffic for inter-carrier compensation purposes, the services and facilities available to the Company, the price the Company will pay for those services and facilities and the regulatory treatment of new technologies and services. The Company anticipates that it will continue to be involved in various disputes, lawsuits, arbitrations and proceedings over these and other material issues. The Company anticipates also that further legislative and regulatory rulemaking will occur—on the federal and state level—as the industry becomes subject to a greater degree of deregulation and as the Company enters new markets or offers new products. Rulings adverse to the Company, adverse legislation, new regulations or changes in governmental policy on issues material to the Company could have a material adverse effect on the Company’s financial condition or results of its operations. Revenue recognized and amounts recorded as allowances for doubtful accounts in the accompanying financial statements have been determined considering the impact, if any, of the items described below. Currently, the Company is involved in several legal and regulatory proceedings including the following, which, if resolved

10

unfavorably to the Company, could have a material adverse effect on US LEC’s results of operations, cash flow and financial position.

     Disputed Access Revenues — On April 27, 2001, the Federal Communications Commission (“FCC”) released its Seventh Report and Order and Further Notice of Proposed Rulemaking (the “Seventh Report and Order”) in which it established a benchmark rate at which a CLECs’ interstate access charges would be presumed to be reasonable and which CLECs could impose on IXCs. Several requests for reconsideration were filed addressing various aspects of the Seventh Report and Order. The FCC resolved those requests in the Eighth Report and Order and Fifth Order on Reconsideration released on May 18, 2004 (“Eighth Report and Order”) in ways that, except as noted below, do not affect the Company.

     The Seventh Report and Order provides some certainty as to the Company’s right to bill IXCs for interstate access at rates at or below the FCC-set benchmark rate even though, up until June 20, 2004, those rates might have been above those tariffed by the ILECs. Notwithstanding the apparent certainty created by the Seventh Report and Order, its effect on the Company continues to depend on how it is interpreted and enforced. Carrier access revenue, including revenue for traffic originating from wireless carriers’ end users, accounted for approximately 9% of the Company’s revenue for the year ended December 31, 2005 and approximately 7% for the quarter ended March 31, 2006. If the Seventh Report and Order is interpreted or enforced in a manner adverse to us, such result could have a material adverse effect on the Company.

     The FCC has an open proceeding to address rules for intercarrier compensation that could result in changes to current rules governing what traffic is compensable by means of access charges and at what rates. If the FCC were to change its policy concerning the ability of CLECs to recover access charges, and if that policy were approved by the courts, the ability of the Company to bill and recover access charges could be adversely affected.

     In September 2002, the Company filed a Petition for Declaratory Ruling asking the FCC to reaffirm the FCC’s prior position that access charges can be collected by local exchange carriers in connection with calls originating or terminating on the networks of wireless carriers. In the Eighth Report and Order, the FCC announced a prospective rule that confirmed a CLEC’s right to bill for calls from other than its own end users as long as it bills only for the components of the access service that it provides. Addressing prior billings for wireless traffic as requested in the Company’s Petition, the FCC made it clear that it had not been unreasonable for a CLEC to bill an IXC at the benchmark rates provided that the CLEC’s charges were otherwise in compliance with and supported by its tariff, and the wireless carrier had not separately billed the IXC for those services. In light of that decision, the Company withdrew its petition as moot.

     Notwithstanding the prospective nature of the Eighth Report and Order, several IXCs continued to dispute interstate and intrastate access charges that the Company billed them for wireless traffic, with some electing to withhold current payments, in whole or in part, pending resolution of their disputes. One of the Company’s disputes remains in litigation. In January 2005, the Company filed suit against Qwest Communications Corporation (“Qwest”) in the U.S. District Court in North Carolina for collection of unpaid interstate and intrastate access charges. Qwest filed a counterclaim, later amended, alleging breach of contract, unjust enrichment, fraud, negligent misrepresentation and breach of North Carolina’s Unfair and Deceptive Trade Practices Act based on the Company’s billing for wireless traffic. The Company filed a motion to dismiss Qwest’s fraud, negligent misrepresentation and state law claim, which is pending before the Court. The Company disputes Qwest’s practice of withholding partial payments and, further, believes that its access billing was and remains consistent with industry practice as reflected in the FCC’s Eighth Report and Order and the Company’s tariffs. Access was provided by the Company and billing rates were based on the interstate and intrastate tariffed rates or contracts with carriers as applicable. The Company intends to continue to defend vigorously against Qwest’s challenges to its billing of access charges and to pursue vigorously collection of unpaid access charges. However, at this time, given the uncertainties of litigation, the Company cannot predict

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when or how the dispute with Qwest will be resolved. Qwest’s suit, if ultimately resolved unfavorably to us, could have a material adverse effect on our results of operations and financial condition.

     Litigation with MCI, and a similar dispute with Sprint that existed as of December 31, 2005 have been resolved by agreement of the parties in February 2006. The settlements resulted in a cash receipt by the Company of approximately $9.0 million in the first quarter of 2006. Going forward, the Company expects to receive payments from these carriers on a timely basis with no further dispute on the settled issues.

     Prior to 2005, the Company established reserves against carrier receivables in response to disputes by IXCs related to interstate and intrastate access charges, including charges related to wireless traffic. These reserves were primarily established for billings to these carriers for periods prior to the effective date of the Eighth Report and Order in June 2004 and were based upon the Company’s assessments of collectibility at that time, including information related to the Company’s historical experience of settling access disputes with other carriers. The Company took a one-time, non-cash charge of approximately $23.3 million in the fourth quarter of 2005 after taking into account the impact of the settlements referenced in the prior paragraph and estimating the resolution of the other unresolved disputes. The Company increased its reserve over the period from June 30, 2004 through September 30, 2005 based upon developing information as to the potential amount of disputed carrier traffic.

     We believe, based on the facts known at this time that the reserves reflected on our balance sheet as of March 31, 2006 for unresolved disputes are adequate to account for their ultimate resolution.

     In light of the general conditions prevailing in the telecommunications industry, there is a risk of further delinquencies, nonpayment or bankruptcies by other telecommunications carriers that owe outstanding amounts derived from access and facility revenues we have billed. Such events, in the aggregate, could have a material adverse effect on the Company’s performance in future periods. We are unable to predict such events at this time.

     The regulatory treatment of VoIP could affect the Company’s ability to collect access charges, especially to the extent that in the future VoIP becomes a more significant voice service technology in the telephone network. In February 2004, the FCC initiated a proceeding to address the appropriate regulatory framework for VoIP providers. Currently, the status of VoIP service as either a telecommunications service or an information service is not clear, although a report issued by the FCC in 1998 suggests that some forms of VoIP may constitute “telecommunications services.^" Long distance telecommunications services that originate or terminate on the traditional telephone network are subject to access charges. The FCC is additionally considering a number of separate petitions filed by ILECs and others specifically concerning whether VoIP is subject to access charges. Our ability to collect access charges could be materially affected if the FCC determines that VoIP or some types of VoIP should not be subject to access charges to the extent any traffic upon which the Company currently, or could potentially in the future, impose access charges is VoIP. Our obligation to pay other carriers access charges for VoIP services that we provide could also be affected by the FCC’s consideration of VoIP regulatory issues. We cannot predict the outcome of the FCC’s VoIP proceedings.

     Reciprocal Compensation – On April 27, 2001, the FCC released an Order on Remand and Report and Order (the “Remand Order”) addressing inter-carrier compensation for traffic terminated to ISPs. The interpretation and enforcement of the Remand Order has been, and will likely continue to be, an important factor in the Company’s efforts to collect reciprocal compensation for ISP-bound traffic. In the Remand Order, the FCC addressed a number of important issues, including the rules under which carriers are to compensate each other for traffic terminated to ISPs and the rates applicable for ISP-bound traffic as well as traffic bound to other customers.

     While the Remand Order provides greater certainty about the Company’s right to bill for traffic terminated to ISPs, the effect of the Remand Order on the Company will depend on how it is interpreted and

12

enforced. In particular, there are uncertainties as to whether the limitations on growth of ISP traffic in the Remand Order, which was subsequently removed, will survive legal challenge.

     On May 3, 2002, the D.C. Circuit rejected the FCC’s legal analysis in the Remand Order and remanded the order to the FCC for further review (the “Second Remand”), but the D.C. Circuit did not vacate the Remand Order. As such, the ISP compensation structure established by the FCC in the Remand Order remains in effect. It remains unclear whether, how or when the FCC will respond to the Second Remand, and how the Remand Order will be interpreted in light of the Second Remand

     On October 8, 2004, the FCC adopted an order in response to a July 2003 Petition for Forbearance filed by Core Communications (“Core Petition”) asking the FCC to forbear from enforcing the rate caps, growth caps, new market rules and mirroring rules of the Remand Order. The FCC granted the Core Petition with respect to growth caps and the new markets rule, but denied the Petition as to the rate caps and mirroring rules (“Core Order”). The decision has been appealed to the D.C. Circuit.

     If the Remand Order or the Second Remand or the Core Order were to be interpreted in a manner adverse to the Company on all or any of the issues, or if the Remand Order is modified as a result of the Second Remand or other pending or new legal challenges, it could have a material adverse effect on the Company’s ability to collect reciprocal compensation for ISP-bound traffic.

     The FCC has an open proceeding to address rules for intercarrier compensation that could result in changes to current rules governing what traffic is compensable and at what rates, including compensation for traffic to ISPs, so it remains unclear at this time whether or how the Remand Order or the Core Order will be interpreted and enforced. Although reciprocal compensation accounted for only 2% of the Company’s revenue for the year ended December 31, 2005, if the FCC were to significantly change its policy for this traffic, and if such changes were approved by the courts, it could have an adverse impact on the Company’s ability to bill carriers for reciprocal compensation. The FCC’s resolution of the regulatory status of VoIP could affect our ability to participate in receipt or payment of reciprocal compensation for VoIP calls. We cannot predict the FCC’s resolution of its consideration of VoIP regulatory issues.

     In a Petition for Forbearance filed with the FCC on December 20, 2004, Verizon asked the FCC to forbear Title II regulations of standalone broadband services, such as ATM, Frame Relay and similar packet-switched services. Under Section 10 of the Act, if the FCC fails to act upon a petition for forbearance within the statutory period, the petition is deemed granted. March 19, 2006 was the date on which the petition was required to be acted upon, or it would be deemed granted. On March 20, 2006, the FCC issued a Public Notice in which it announced that no action was taken on the Verizon petition and it was deemed granted. With the grant of forbearance, the services affected by the grant are no longer required to be offered under the terms, conditions and rates set forth in the tariffs on file with the FCC nor would the Title II sections of the Act that require Verizon to offer these service at just and reasonable rates and in a non-discriminatory manner be applied to the offering of these services. The Company purchases certain of the affected services from Verizon and is in discussions with Verizon as to the impact on the current terms, conditions and rates on these services due to the grant of the petition. The Company anticipates that AT&T, BellSouth and Sprint will file similar petitions for forbearance. The Company cannot predict the impact, if any, the grant of this petition and similar ones will have on the Company’s network expenses; however, if the rates, terms and conditions associated with the current service subject to the petition are negotiated adverse to the Company, it could have a material adverse effect on the Company.

     Legislation – Periodically, legislation has been introduced in Congress to alter or amend the Telecom Act, which opened local telephone markets for competition and outlines many of the ground rules pursuant to which ILECs and CLECs operate with respect to each other. Additional efforts are underway to alter, amend or re-write the Telecom Act, with bills having been introduced in both the House and Senate that are aimed at further relaxing the regulation of ILECs and at creating new frameworks to govern the provision of so-called

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broadband services. The Company cannot predict whether or when any particular piece of legislation will become law or how the Telecom Act might be modified. The passage of legislation amending the Telecom Act could have a material adverse effect on the Company’s future operations and its future financial results.

     Similarly, some ILECs have introduced legislation in various state legislatures aimed at minimizing or eliminating entirely the extent to which those ILECs are regulated by state PUCs. The Company anticipates that additional efforts will be made in the state legislatures to alter or amend the oversight of ILECs and ILEC services in those states. The Company cannot predict whether any particular piece of legislation will become law and how it will impact the provision of telecommunications in a particular state. The passage of legislation altering PUCs’ jurisdiction over ILECs in any number of states could have a material adverse effect on the Company’s future operations and its future financial results.

     Interconnection Agreements with ILECs – The Company has agreements for the interconnection of its networks with the networks of the ILECs covering each market in which US LEC has installed a switching platform. US LEC may be required to negotiate new interconnection agreements as it enters new markets in the future. In addition, as its existing interconnection agreements expire, it will be required to negotiate extension or replacement agreements. The Company concluded interconnection arbitrations with Verizon in 2002 in order to obtain new interconnection agreements on terms acceptable to the Company. The Company has filed new agreements in several Verizon states based on the decisions of the PUCs in those states. In February 2004, Verizon filed petitions with several state commissions asking those commissions to arbitrate the terms of an amendment to its interconnection agreements addressing the triennial review order (“TRO”), and subsequently amended the petitions asking those commissions to address the terms of the Triennial Review Remand Order (“TRRO”) in the arbitrations as well. Verizon has asked each commission to consolidate arbitrations against a number of CLECs and CMRS carriers, including US LEC. The Company has received a decision in one of the TRRO arbitration cases, and is negotiating a conforming amendment with Verizon, and is awaiting the decisions of three other commissions in the proceedings in which it actively participated. There can be no assurance that the Company will successfully negotiate, successfully arbitrate or otherwise obtain such additional agreements or amendments for interconnection with the ILECs or renewals of existing interconnection agreements on terms and conditions acceptable to the Company.

     Interconnection with Other Carriers - The Company anticipates that as its interconnections with various carriers increase, the issue of seeking compensation for the termination or origination of traffic whether by reciprocal arrangements, access charges or other charges will become increasingly complex. The Company does not anticipate that it will be cost effective to negotiate agreements with every carrier with which the Company exchanges originating and/or terminating traffic. The Company will make a case-by-case analysis of the cost effectiveness of committing resources to these interconnection agreements or otherwise billing and paying such carriers.

     Other Litigation - We are involved, and expect to continue to be involved, in other proceedings arising out of the conduct of the Company’s business, including litigation with other carriers, employment related lawsuits and regulatory proceedings. The results of these matters cannot be predicted with certainty, and an unfavorable resolution of one or more of these matters, including the matters specifically discussed above, could have a material adverse effect on the Company’s business, financial condition, results of operations, cash flows and business prospects.

5. Stockholders’ Deficiency

     Stock Option Plan – In January 1998, the Company adopted the US LEC Corp. 1998 Omnibus Stock Plan (the “Plan”). The Plan was amended in May 2005 to increase by 2,000 the number of shares issuable under the Plan. Under the amended Plan, 7,000 shares of Class A Common Stock have been reserved for issuance for stock options, stock appreciation rights, restricted stock, performance awards or other stock-based awards. As of March 31, 2006, 1,384 were available for grant under the amended Plan. Options granted under the Plan are at

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exercise prices determined by the Board of Directors or its Compensation Committee. For incentive stock options, the option price may not be less than the market value of the Class A common stock on the date of grant (110% of market value for greater than 10% stockholders).

     In February 2006, the Company announced a voluntary stock option exchange offer for current employees and directors holding stock options granted prior to January 1, 2006 (the “2006 Exchange Offer”). The 2006 Exchange Offer expired on March 27, 2006. Immediately following the expiration of the 2006 Exchange Offer the Company granted new options for exchange and canceled the tendered options. Options covering a total of 4,321 shares were eligible for exchange in the offer. The Company accepted for exchange eligible options tendered to it for 3,721 shares of US LEC common stock and canceled all of these eligible options. The exercise price of the new options was $2.08, the average closing price per share of US LEC’s common stock on the NASDAQ National Market for the five consecutive trading days immediately before the date the new options were granted.

     Employee Stock Purchase Plan – The Company established an Employee Stock Purchase Plan (the “ESPP”) in September 2000 covering 2,000 shares of Class A Common Stock. The ESPP was amended in May 2005 to increase to 3,000 the number of shares issuable under the ESPP. Under the ESPP, employees may elect to invest up to 10% of their compensation in order to purchase shares of the Company’s Class A Common Stock at a price equal to 85% of the market value at either the beginning or end of the offering period, whichever is less. As of March 31, 2006, 554 shares were available for issuance under the ESPP.

6. Subsequent Event

     Early in the second quarter of 2006, the Company announced plans to invest $2.5 million for a 37.5 percent stake in ExtreamTV, which provides video-on-demand services to the hospitality industry. As part of the transaction, Aaron D. Cowell, Jr., US LEC’s president and chief executive officer, will join Massachusetts-based ExtreamTV’s board.

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ITEM 1A. RISK FACTORS

     We are updating certain of the “Risk Factors” in our Form 10-K Report for the year ended December 31, 2005 (the “Form 10-K”) by repeating the bold-faced risk heading in the Form 10-K and updating the narrative discussion under the heading. All of the other risk factors in the Form 10-K continue to be applicable to us and should be carefully considered, together with the risk factors as updated below. In addition, investors should consider carefully the information in Item 2 and the discussion in Note 4 to our unaudited condensed consolidated financial statements included elsewhere in this report. Our industry is highly competitive and changes rapidly. Sometimes new risks emerge and management may not be able to anticipate all of them or be able to predict how they impact our business and financial performance.

     The Company’s continued success depends on the ability to manage and expand operations effectively.

     The Company’s ability to manage and expand operations effectively will depend on the ability to:

• offer high-quality, reliable services at reasonable costs;

• install and operate telecommunications switches and related equipment;

• lease access to suitable transmission facilities at competitive prices;

• scale operations;

• obtain successful outcomes in disputes and in litigation, rule-making, legislation and regulatory proceedings;

• successfully negotiate, adopt or arbitrate interconnection agreements with other carriers;

• acquire necessary equipment, software and facilities;

• integrate existing and newly acquired technology and facilities, such as switches and related equipment;

• evaluate markets;

• add products;

• monitor operations;

• control costs;

• maintain effective quality controls;

• hire, train and retain qualified personnel;

• enhance operating and accounting systems;

• address operating challenges; adapt to market and regulatory developments; and

• obtain and maintain required governmental authorizations.

     In order for the Company to succeed, these objectives must be achieved in a timely manner and on a cost-effective basis. If these objectives are not achieved, the Company may not be able to compete in existing markets or expand into new markets. A failure to achieve one or more of these objectives could have a material adverse effect on the Company’s business.

     In addition, the Company has grown rapidly since inception and expects to continue to grow primarily by expanding our product offerings, adding and retaining customers, acquisitions and entering new markets. The Company expects this growth to place a strain on operational, human and financial resources, particularly if the growth is through acquisitions. The ability to manage operations and expansion effectively depends on the continued development of plans, systems and controls for operational, financial and management needs. The

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Company cannot give any assurance that these requirements can be satisfied or that the Company’s operations and growth can be managed effectively. A failure to satisfy these requirements could have a material adverse effect on the Company’s financial condition and the ability to implement fully its growth and operating plans.

     The number of our business class customers has grown from approximately 16,800 as of December 31, 2003 to over 27,000 as of March 31, 2006. Revenue from the services we provide to these customers increased from $211.3 million in 2003 to $330.8 million in 2005. In addition, compared to the first quarter of 2005, we experienced an increase of $10.6 million, or 13%, in revenue from our business class customers in the quarter ended March 31, 2006. A decline in our base of business class customers or in the products and services we provide to them, or our inability to continue to grow this customer base, would have a significant negative effect on our results of operation and cash flow.

     If the Company makes acquisitions, it will incur additional risks that could be harmful to our business.

     US LEC may acquire other businesses as a means to expand into new markets, to capture additional market share, or to provide new services. The Company is unable to predict whether or when any prospective acquisitions will occur or the likelihood of completing an acquisition on favorable terms and conditions. Any acquisition involves certain risks including, but not limited to:

• difficulties assimilating acquired operations and personnel;

• potential disruptions of the Company’s ongoing business;

• the diversion of resources and management time;

• the possibility that uniform standards, controls, procedures and policies may not be maintained;

• risks associated with entering new markets in which the Company has little or no experience;

• risks related to providing new services with which the Company has little experience;

• the potential impairment of relationships with employees or customers as a result of changes in management;

• difficulties in evaluating the historical or future financial performance of the acquired business;

• integration of network equipment and operating support systems;

• brand awareness issues related to the acquired assets or customers; and

• prepayment of assumed liabilities from acquired companies.

     The Company recently made an investment in ExtreamTV, LLC that entails significant risks associated with our success in offering digital video-on-demand and high speed Internet access to the hospitality industry. In exchange for a 37.5 % ownership position, we recently agreed to invest $2.5 million in ExtreamTV. ExtreamTV is a next generation provider of digital video-on-demand, high speed Internet access and other interactive services to the hotel, time share and hospital industries. We have over 2,300 customers in the hospitality industry and believe that we can leverage our success in this sector with the addition of ExtreamTV’s products to our own. We face intense competition in seeking to provide telecommunication, video-on-demand and Internet access to the hospitality industry. As a result, if this new initiative is not successful, there is a substantial risk that our investment in ExtreamTV will not be recovered and that the offering of its products with our own will not have any significant positive impact on our results of operations or cash flow.

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     If the Company decides to make further investments or acquisitions, there can be no assurance that the Company would be able to obtain the financing on satisfactory terms or that the acquired business would perform as expected.

     System disruptions could cause delays or interruptions of service, which could cause the Company to lose customers.

     The Company’s success ultimately depends on providing reliable service. Although the Company’s network has been designed to minimize the possibility of service disruptions or other outages, it may be disrupted by problems in the network, such as equipment failures and problems with a competitor’s or vendor’s system, such as physical damage to telephone lines or power surges and outages. Any disruption in the Company’s network could cause the loss of customers and result in additional expenses.

     Disruptions caused by security breaches, terrorism or other disasters, could harm our future operating results. The day-to-day operation of our business is highly dependent on our ability to protect our communications and information technology systems from damage or interruptions by events beyond our control. Sabotage, computer viruses or other infiltration by third parties could damage or disrupt our service, damage our facilities, damage our reputation, and cause us to lose customers, among other things, and could harm our results of operations. A catastrophic event could materially harm our operating results and financial condition. Catastrophic events could include a terrorist attack in markets where we operate or a major earthquake, fire, or similar event that would affect our central offices, corporate headquarters, network operations center or network equipment.

     The FCC has undertaken a review of Special Access pricing which, if decided adversely to us, could have an adverse impact on the prices we pay for components of our network.

     In January 2005, the FCC released a Notice of Proposed Rulemaking (“NPRM”) to initiate a comprehensive review of rules governing the pricing of special access service offered by ILECs subject to price cap regulation. Special access pricing by these carriers currently is subject to price cap rules as well as pricing flexibility rules which permit these carriers to offer volume and term discounts and contract tariffs (Phase I pricing flexibility) and remove special access service in a defined geographic area from price caps regulation (Phase II pricing flexibility) based on showings of competition. The NPRM tentatively concludes to continue to permit pricing flexibility where competitive market forces are sufficient to constrain special access prices, but will undertake an examination of whether the current triggers for pricing flexibility (based on certain levels of collocation by competitors within the defined geographic area) accurately assess competition and have worked as intended. The NPRM also asks for comment on whether certain aspects of ILEC special access tariff offerings, some of which are particularly important to the Company (e.g., basing discounts on previous volumes of service; tying nonrecurring charges and termination penalties to term commitments; and imposing use restrictions in connection with discounts), are unreasonable. Given the early phase of the proceeding, the Company cannot predict the impact, if any, the NPRM will have on the Company’s network cost structure; however, if any of the matters addressed in the NPRM are decided adversely to the Company, it could result in increased prices for special access which could have a material adverse effect on the Company’s ability to purchase special access at competitive prices.

     On March 20, 2006, the FCC announced that it had permitted a request by Verizon for forbearance from Title II regulation of standalone broadband services, such as ATM, Frame Relay and similar packet-switched services to be deemed granted. Although the forbearance does not apparently apply to the special access services that we obtain from Verizon, the Company purchases certain of the affected services from Verizon and is in discussions with Verizon as to the impact on the current terms, conditions and rates on these services due to the grant of the petition. The FCC may consider further deregulation of ILEC broadband services which could increase our costs for some of these services. The Company anticipates that AT&T, BellSouth and Sprint will file similar petitions for forbearance. The Verizon forbearance has been appealed. The Company cannot predict the impact, if any, that grant of this petition and similar ones will have on the Company’s network expenses;

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however, if the rates, terms and conditions associated with current services subject to the petition are negotiated adverse to the Company, it could have a material adverse effect on the Company.

     The outcome of pending rule-making proceedings addressing the proper framework for all intercarrier compensation could have an adverse effect on our results of operations and cash flow.

     On February 10, 2005, the FCC released a Further NPRM in the Unified Intercarrier Compensation docket. The FCC had been expected to resolve a number of pending petitions addressing various compensation matters, but did not do so. Instead, the FCC simply announced that it is seeking comment on seven comprehensive reform proposals submitted by the industry in order to develop a compensation framework that will address the four common themes for reform that had emerged from the record: (1) encouraging efficient competition and the use of the network; (2) preserving universal service support; (3) fostering technological and competitive neutrality; and (4) minimizing regulatory intervention and enforcement. The Commission is also considering the regulatory status of VoIP which could impact the ability of the Company and other telecommunications carriers to impose intercarrier compensation charges on VoIP calls as well as requirements to pay intercarrier compensation for VoIP calls. The Company cannot predict the outcome of these FCC proceedings.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

     This report contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including statements regarding, among other items, our expected financial position, business, risk factors and financing plans. These statements are identified by the use of forward-looking terminology such as “believes,” “expects,” “may,” “will,” “should,” “estimates” or “anticipates” or the negative thereof or other variations thereon or comparable terminology, or by discussions of strategy that involve risks and uncertainties. These forward-looking statements are based on a number of assumptions concerning future events, including the outcome of judicial and regulatory proceedings, the adoption of balanced and effective rules and regulations by the Federal Communications Commission and state public utility commissions, and US LEC’s ability to successfully execute its business plan. These forward-looking statements are also subject to a number of uncertainties and risks, many of which are outside of US LEC’s control that could cause actual results to differ materially from such statements. Important factors that could cause actual results to differ materially from the expectations described in this report are set forth in Notes 1 and 4 to the condensed consolidated financial statements appearing in this report and related discussion under heading “Risk Factors” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2005, which is on file with the SEC. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date they are made. We undertake no obligation to publicly update or revise any forward-looking statements, whether as of a result of new information, future events or otherwise.

Overview

     General. US LEC is a Charlotte, North Carolina-based telecommunications carrier providing voice, data and Internet services to over 27,000 mid-to-large-sized business class customers throughout the eastern United States. We primarily serve telecommunications-intensive customers in a wide variety of industries. The Company also provides shared Web hosting, dial-up Internet services and consumer Voice over Internet Protocol (“VoIP”) to approximately 11,000 additional residential and small business customers.

     In evaluating US LEC’s operating performance, we consider the following measures to be the most important:

• total revenue,

• end customer revenue in total, and as a percentage of total revenue,

• customer retention,

• control of network expense, general and administrative expenses, and

• working capital management.

During the three months ended March 31, 2006, management believes the Company achieved positive results in each of these measures.

     Revenue. The following table provides a breakdown of the components of our revenue for the three months ended March 31, 2006 and 2005:

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	Three months
	ended March 31,
	2006			2005
End Customer Revenue
Voice Monthly Recurring Charges	$	42,769		$	37,836
Data Monthly Recurring Charges		33,186			28,391
Long Distance		13,770			12,892
		89,725			79,119
Percent of Total Revenue		87	%		85	%
Carrier Charges
Carrier Access		7,377			8,994
Reciprocal Compensation		2,023			2,296
		9,400			11,290
Percent of Total Revenue		9	%		12	%
Other Revenue		3,672			3,107
Percent of Total Revenue		4	%		3	%
Total Revenue	$	102,797		$	93,516

     As illustrated by the table above, the increase in total revenue has resulted primarily from growth in end customer revenue. The growth in end customer revenue was primarily attributable to an increase in the number of customers, achieved through a combination of increased penetration of established markets, continued development and acceptance of new services. In addition, high rates of customer retention facilitate end customer revenue growth and increased opportunity for providing additional services. During the quarter ended March 31, 2006, our end customer base increased from approximately 26,200 to over 27,000, and our average monthly business class customer turnover remained constant at approximately 0.6%.

     A key source of growth in end customer revenue has been the increase in data services and we anticipate this growth will continue in future periods. During the quarter ended March 31, 2006, we increased end customer revenue from data services from approximately 30% of total revenue in the first quarter of 2005 to 32% of total revenue in the first quarter of 2006.

     Customer Retention. One of the measures that we use to gauge our success in both providing quality services to our customers and in competing against the incumbent and other carriers in our markets is our customer retention rate. As we add more customers to our base, it is important that we retain as many of our current customers as possible, because the cost of obtaining a new customer is greater than keeping an existing one. We include every category of customer loss when we calculate the customer retention rate for US LEC, including customers that are deactivated due to non-payment of their bills. We believe that US LEC has one of the highest retention rates among any of the carriers in our footprint. During the quarter ended March 31, 2006, we retained 98.25% of our customer base, an average retention of 99.4% per month.

     Network Expense. During the quarter ended March 31, 2006, we continued to execute a controlled growth strategy that included an extensive re-configuring and streamlining of our network, strict purchasing controls, network design changes, improved purchasing terms and the addition of lower cost circuits to our network as we continued to provision some UNE loops. The results of these efforts are reflected in the reduced cost of our local network and customer loops, which decreased 7% from the first quarter of 2005 to the first quarter of 2006. This cost reduction contributed to network expense as a percentage of revenue remaining at approximately 49% for the three months ended March 31, 2006 and 2005, despite the shift in revenue mix from carrier charges toward end customer revenue, which carries higher network expense.

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     Working Capital Management. During the quarter ended March 31, 2006, we continued to focus on the management of end customer receivables and days sales outstanding (“DSOs”), accounts payable and vendor relationships and strict purchasing controls on selling, general and administrative expenses. Through the first quarter of 2006, the Company has had positive cash flow from operations in thirteen of the last fourteen quarters. Cash flow from operations for the three months ended March 31, 2006 was approximately $14.0 million compared to $6.0 million for the same period last year.

Results of Operations

Three Months Ended March 31, 2006 Compared With the Three Months Ended March 31, 2005

     Revenue. Approximately 96% of the Company’s revenue is currently derived from two sources – end users and carrier charges. The balance of the Company’s revenue is derived from other sources, including wholesale customers, installation revenue, and other miscellaneous sources. Revenue increased to $102.8 million for the three months ended March 31, 2006 from $93.5 million for the three months ended March 31, 2005. For the three months ended March 31, 2006, the Company’s end customer revenue increased to $89.7 million, or 87% of total revenue, from $79.1 million, or 85% of total revenue, for the same period in 2005. The growth in end customer revenue was due to an increase in the number of end customers and in the services utilized by each customer. This increase in customers and in end customer revenue was primarily achieved through a combination of increased penetration of established markets, continued development and acceptance of new services and geographic expansion. Of particular note is that the majority of the increase in end customer revenue was due to an increase of approximately 6,900 customers purchasing data services, resulting in a $4.8 million increase in data revenue from the first quarter of 2005 to the first quarter of 2006. Our product take rate – the number of services utilized by each customer – increased from 4.8 as of March 31, 2005 to 5.0 as of March 31, 2006.

     Revenue from carrier charges decreased to $9.4 million for the three months ended March 31, 2006 from $11.3 million for the same period in 2005. We expect total carrier revenue to remain relatively flat or to decrease slightly in future periods due primarily to anticipated lower rates offset by additional minutes on our network.

     We expect total revenue to increase in future periods as a result of end customer growth. Carrier revenue is expected to be relatively flat in future periods, but decline as a percentage of total revenue. Reciprocal compensation and wholesale revenue continue to represent a very minor portion of our total revenue. Other revenue including wholesale revenue accounted for only 4% of total revenue for the three months ended March 31, 2006.

     Network Expenses. Network expenses are comprised primarily of leased transport, facility installation, and usage charges. Network expenses increased to $50.3 million for the three months ended March 31, 2006 from $45.8 million for the three months ended March 31, 2005, yet remained flat as a percentage of revenue at 49% for the same periods despite the shift in revenue mix toward end customer revenue which carries higher network expenses. The increases in network expense as a percentage of revenue that resulted from reductions in carrier access revenue were offset by decreases in network expense as a percentage of revenue as a result of network reconfiguring and streamlining activities, and positive adjustments of previous amounts estimated as accrued network costs. This increase in network expenses was primarily a result of the increase in the size of US LEC’s network, an increase in customers and usage by our customers, as well as a shift to higher network expense for end customer revenue.

     Depreciation and Amortization. Depreciation and amortization for the quarter ended March 31, 2006 decreased to $12.2 million from $12.9 million for the quarter ended March 31, 2005. The decrease in depreciation and amortization for the quarter was primarily due to an increase in fully depreciated assets.

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     Selling, General and Administrative Expenses (excluding stock-based compensation expense). Selling, general and administrative (“SG&A”) expenses for the quarter ended March 31, 2006 increased to $37.8 million compared to $35.9 million for the quarter ended March 31, 2005, but decreased as a percentage of revenue to 37% from 38% for the same periods. The increase in expense was primarily due to an increase in salaries and related costs which continue to account for over 60% of the Company’s total SG&A, as well as an increase in advertising and marketing and agent commission expenses. Total headcount increased 5% to 1,127 as of March 31, 2006 from 1,078 as of March 31, 2005, while the Company increased its business class customer base by over 15% over the same period.

     Other SG&A expenses are primarily comprised of costs associated with developing and expanding the infrastructure of the Company as it expands into new markets and adds new services. Such expenses are associated with marketing, occupancy, bad debt, administration and billing. Other SG&A expenses also include legal fees associated with disputes and loss on disposal of fixed assets. The maintenance of SG&A expenses as a percentage of revenue was primarily due to expense control, an improvement in back office efficiencies and growth in revenue. An illustration of our productivity improvement is the amount of end customer revenue per employee, which increased from $73,400 in the first quarter of 2005 to $79,600 in the first quarter of 2006. We expect continued improvements in this measure as we continue to focus on efficiency in our back office operations.

     Stock-based Compensation Expense. Stock-based compensation expense for the quarter ended March 31, 2006 was $0.7 million. As of January 1, 2006, the Company adopted SFAS No. 123(R), “Share-Based Payment,” using the modified prospective transition method. Under this method, compensation expense is recognized for new grants beginning this fiscal year and any unvested grants prior to the adoption of SFAS No. 123(R). In accordance with this method financial statements for prior periods have not been restated.

     Interest Income and Expense. Interest income for the three months ended March 31, 2006 was $0.3 million compared to interest income of $0.2 million for the three months ended March 31, 2005. Interest expense for the three months ended March 31, 2006 was $4.9 million compared to $4.0 million for the three months ended March 31, 2005. The increase in interest expense was primarily related to higher overall market interest rates.

     Income Taxes. For the three months ended March 31, 2006 and 2005, the Company did not record an income tax benefit. The Company has provided a full valuation allowance against deferred tax assets resulting from net operating losses, as management cannot predict, based on available evidence, that it is more likely than not that such assets will be ultimately realized.

     Net Loss. Net loss for the three months ended March 31, 2006 amounted to $2.7 million, compared to a net loss of $4.8 million for the three months ended March 31, 2005. Dividends paid in kind and accrued on preferred stock for the three months ended March 31, 2006 and 2005 amounted to $4.2 million and $4.0 million, respectively. The accretion of preferred stock issuance costs for the three months ended March 31, 2006 and 2005 amounted to $0.2 million each quarter.

     As a result of the foregoing, net loss attributable to common stockholders for the three months ended March 31, 2006 amounted to $7.1 million, or $0.23 per diluted share, as compared to $8.9 million, or $0.29 per diluted share for the three months ended March 31, 2005.

Liquidity and Capital Resources

     Since our public offering of approximately $87.1 million of Class A common stock in April 1998, we have funded our operations and capital needs through borrowings under our secured credit facility and private placements of equity and debt securities, including $200.0 million of Series A convertible preferred stock with

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affiliates of Bain Capital and Thomas H. Lee Partners L.P. in April 2000, $5.0 million of 11% senior subordinated notes in December 2002, $10.0 million of Class A common stock in November 2003 and, in September 2004, $150.0 million in aggregate principal amount of Second Priority Senior Secured Floating Rate Notes due 2009 (the “Notes”), the proceeds of which were used to repay all outstanding debt. The Company exchanged the privately placed notes for publicly registered notes in December 2004. In October 2005, the Company entered into a $10.0 million Revolving Credit Facility which, as of the filing date of this report, there were no advances under the facility. In addition, the Company has raised over $7.5 million between 1998 and March 2006 through the purchase of Class A common stock by employees under the Company’s stock plans. Through the first quarter of 2006, the Company has generated positive cash flow from operations for thirteen of the last fourteen quarters. Net cash provided by operating activities for 2006 was $14.0 million.

     The Notes bear interest at an annual rate of six-month LIBOR plus 8.50%. Interest is reset semi-annually and is payable on April 1 and October 1 of each year. The interest rate for the six-month period ending April 1, 2006, which was set on October 1, 2005, is 12.72%. The interest rate for the six month period ending October 1, 2006, which was set on April 1, 2006 is 13.62%. The maturity date of the Notes is October 1, 2009. The Notes are guaranteed by all of the Company’s subsidiaries and are secured on a second priority basis by substantially all the assets of the Company and its subsidiaries, including the capital stock of the Company’s subsidiaries.

     The indenture governing the Notes contains covenants which, subject to certain exceptions, limit the ability of the Company and its subsidiaries to incur additional indebtedness, engage in certain asset sales, make certain types of restricted payments, engage in transactions with affiliates and create certain liens on the assets of the Company or its subsidiaries. Upon a change of control, the indenture requires the Company to make an offer to repurchase the Notes at 101% of the principal amount, plus accrued interest. The indenture allows the Company to redeem the Notes at redemption prices of 105.5%, 103.5% and 100.0% of the principal amount during the 12-month period beginning on October 1 of the years 2006, 2007 and 2008 and thereafter, respectively.

     Debt issuance fees associated with the Notes totaled $5.6 million and are being amortized through the maturity date of October 1, 2009. Unamortized debt issuance fees related to the Notes are $3.9 million as of March 31, 2006. Debt issuance fees associated with the Revolving Credit Facility totaled $0.5 million and are being amortized through the maturity date of August 1, 2009. Unamortized debt issuance fees related to the Revolving Credit Facility are $0.4 million as of March 31, 2006.

     The following table provides a summary of the Company’s contractual obligations and commercial commitments:

	Payment Due by Period (in millions)
			Less than		1-3		4-5		After 5
Contractual Obligations	Total		1 year		years		years		years
Long-term debt (1)	$	150.0	$	—	$	150.0	$	—	$	—
Operating leases		41.6		8.8		25.8		4.3		2.7
Total contractual cash obligations	$	191.6	$	8.8	$	175.8	$	4.3	$	2.7

(1) Amount excludes interest expense which is payable semi-annually on the $150.0 million face value of the Notes at an annual rate of six-month LIBOR plus 8.50% which is estimated to total approximately $72.0 million over the remaining term of the Notes, assuming current interest rates of 13.75% over the period. The discount on the Notes, totaling $0.75 million, is being amortized to interest expense on the statement of operations through the maturity date of October 1, 2009. There were no amounts outstanding under our $10.0 million Revolving Facility.

     Cash provided by operating activities was approximately $14.0 million and $6.0 million for the quarters ended March 31, 2006 and 2005, respectively. The increase in cash provided by operating activities of $8.0

24

million was primarily due to an $11.7 million increase in cash provided by accounts receivable, $1.2 million increase in cash provided for customer revenue sharing arrangements and a $4.5 million increase in cash used for accrued network costs. Additional decreases in cash used for accounts payable, accrued expenses, prepaid expenses and other working capital items were offset by a reduction in net loss from operations. The decrease in total accounts receivable of $8.0 million since December 31, 2005 was primarily due to the receipt of approximately $9.0 million in the first quarter of 2006 for settlements with MCI and Sprint related to the billing of access for wireless traffic (see Note 4 to the condensed consolidated financial statements). Carrier receivables increased $0.8 million excluding the $9.0 million carrier settlement payment and end customer receivables increased $0.6 million. Wholesale receivables decreased $0.3 million primarily due to the timing of payments at the end of the quarter.

     Cash used in investing activities decreased to $8.0 million in the first quarter of 2006 from $9.3 million in the first quarter of 2005. Cash purchases of property and equipment of $7.7 million and $9.3 million in the first quarter of 2006 and 2005, respectively, consisted of purchases of switching and related telecommunications equipment, including customer premises equipment, back office information systems, office equipment and leasehold improvements. Although management expects that total capital expenditures for the purchase of property and equipment in 2006 will be similar to those in 2005, the Company’s deployment of future service offerings may require higher spending.

     Cash used in financing activities was $1.0 million for the three months ended March 31, 2005 which included payment on notes payable related to the acquisition of StarNet.

     The restricted cash balance of $0.1 million as of March 31, 2006 and December 31, 2005, serves as collateral for letters of credit related to certain office leases. In addition, the non-current portion of restricted cash of $0.5 million is included in other assets in the consolidated balance sheet as of March 31, 2006 and December 31, 2005. Restricted cash is utilized to secure the Company’s performance of obligations such as letters of credit to support leases or deposits in restricted use accounts.

     Cash paid for capital expenditures identified above of approximately $7.7 million for the three months ended March 31, 2006, was primarily incurred to support new customer growth. We expect capital expenditures in 2006 to be consistent with capital expenditures incurred in 2005 unless the Company’s deployment of future service offerings results in higher spending. We estimate that our debt service requirements for the remainder of 2006 will be approximately $19.8 million for cash interest payments on the Notes. There are no scheduled principal payments on the Notes until October 2009. We believe our existing cash on hand and cash flow from operations will be sufficient to fund our operating, investing and debt service requirements through at least March 2007.

Critical Accounting Policies and Estimates

     The following is the only change to the Company’s significant accounting policies and estimates as set forth in the Annual Report on Form 10-K for the year ended December 31, 2005.

     Stock-based Compensation — The Company grants stock options to its employees and non-employee directors as part of their compensation. The Company’s employees are also eligible to participate in an Employee Stock Purchase Plan (the “ESPP”). The amount of stock-based compensation expense incurred and to be incurred in future periods is dependent upon a number of factors, such as the number of options granted, the timing of stock option exercises, actual forfeiture rates and the number of ESPP shares purchased. We estimate the fair value of all stock option awards and ESPP shares as of the date of grant by applying the Black-Scholes option-pricing model. The application of this valuation model involves assumptions, some of which are judgmental and highly sensitive, in the determination of stock-based compensation expense. These assumptions include our expected stock price volatility and the expected life of our stock options which are based primarily on

25

our historical experience. The fair value of stock options is amortized into compensation expense on a straight-line basis over the optionee’s vesting period.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     US LEC is exposed to various types of market risk in the normal course of business, including the impact of interest rate changes on its investments and debt. As of March 31, 2006, investments consisted primarily of institutional money market funds. All of the Company’s long-term debt consists of variable rate debt with an interest rate that is based on the six-month London Interbank Offered Rate (“LIBOR”), plus 8.5%, which is reset semi-annually. The Company anticipates that variable rate interest expense for the next six months will be approximately $10.2 million based on the six-month interest rate set on April 1, 2006. Although it is difficult to predict the impact of interest rate changes on the Company’s financial statements, the Company has total variable rate debt with a face value of $150.0 million as of March 31, 2006. At this level, each one percent increase or decrease in interest rates will have approximately a $1.5 million annual impact on the financial statements of the Company.

     Although US LEC does not currently utilize any interest rate management tools, it continues to evaluate the use of derivatives such as, but not limited to, interest rate swap and cap agreements to manage its interest rate risk. As the Company’s investments are all short-term in nature and all of its long-term debt is currently at variable short-term rates, management believes the carrying values of the Company’s financial instruments approximate fair values.

ITEM 4. CONTROLS AND PROCEDURES

     Our management, under the supervision and with the participation of our principal executive officer and our principal financial officer, evaluated the effectiveness of our disclosure controls and procedures as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on this evaluation, our principal executive officer and our principal financial officer have concluded that our disclosure controls and procedures are effective as of the end of the period covered by this Quarterly Report on Form 10-Q. During the last fiscal quarter, there were no changes in our internal controls over financial reporting that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II OTHER INFORMATION

Item 1. Legal Proceedings

     US LEC is not currently a party to any material legal proceeding, other than proceedings, arbitrations, and any appeals thereof, related to reciprocal compensation, intercarrier access and other amounts due from other carriers. For a description of these proceedings and developments that have occurred during the quarter ended March 31, 2006, see Note 4 to the condensed consolidated financial statements appearing elsewhere in this report.

Item 6. Exhibits

Exhibit No.	Description
10.1*	Settlement Agreement and General Release between Sprint Communications Company L.P., on behalf of itself and all parent, subsidiary and affiliated corporations, excluding the business of the Sprint local telecommunications division operations, and US LEC Corp., and all of its affiliates or subsidiaries.
10.2*	Settlement Agreement between MCI, LLC (formerly known as MCI, Inc.) and all of its subsidiaries, and US LEC Corp. and all of its affiliates or subsidiaries.
31.1	Rule 13a-14(a) Certification of Chief Executive Officer
31.2	Rule 13a-14(a) Certification of Chief Financial Officer
32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

* Certain portions of these exhibits have been omitted pursuant to a request for confidential treatment filed with the Commission.

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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.

US LEC Corp.

By:	/s/ J. Lyle Patrick
	J. Lyle Patrick
	Chief Financial Officer
	May 15, 2006

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Exhibit Index

Exhibit No.	Description
10.1*	Settlement Agreement and General Release between Sprint Communications Company L.P., on behalf of itself and all parent, subsidiary and affiliated corporations, excluding the business of the Sprint local telecommunications division operations, and US LEC Corp., and all of its affiliates or subsidiaries.
10.2*	Settlement Agreement between MCI, LLC (formerly known as MCI, Inc.) and all of its subsidiaries, and US LEC Corp. and all of its affiliates or subsidiaries.
31.1	Rule 13a-14(a) Certification of Chief Executive Officer
31.2	Rule 13a-14(a) Certification of Chief Financial Officer
32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

* Certain portions of these exhibits have been omitted pursuant to a request for confidential treatment filed with the Commission.

29

EX-10.1

Exhibit 10.1

SETTLEMENT AGREEMENT AND GENERAL RELEASE

     This Settlement Agreement and General Release (the “Agreement”) is entered into as of this 16^th day of February_, 2006 (the “Effective Date”), between Sprint Communications Company L.P., a Delaware limited partnership, having offices at 6500 Sprint Parkway, Overland Park, Kansas 66251, on behalf of itself and all parent, subsidiary and affiliated corporations (“Sprint”), excluding the business of the Sprint local telecommunications division operations as generally described in the Form 10 filed January 23, 2006, with the United States Securities and Exchange Commission by LTD Holding Company, which includes, but is not limited to the companies listed in the attached Exhibit “A,” each a corporation with its principal place of business located at 5454 W. 110th Street, Overland Park, Kansas 66211 and operating as an ILEC (as defined in 47 CFR § 6l.26(a)(2)) (“LTD Local”) and US LEC Corp., and all of its affiliates or subsidiaries, including, but not limited to US LEC of Alabama Inc., US LEC of Florida Inc., US LEC of Georgia Inc., US LEC of North Carolina Inc., US LEC of Tennessee Inc., US LEC of Virginia L.L.C., US LEC of Maryland Inc., US LEC of Pennsylvania Inc., US LEC of South Carolina Inc., and US LEC Communications Inc. (collectively “US LEC”) (Sprint and US LEC together, the “Parties”).

     WHEREAS, disputes have arisen among the Parties regarding US LEC’s charges to Sprint for certain Switched Access Services in connection with 8YY Traffic sent by US LEC to Sprint for delivery to Sprint’s 8YY customers; and

     WHEREAS, the Parties desire to enter into this Agreement to resolve all disputes between Sprint and US LEC relating to US LEC’s Switched Access Services billed for 8YY Traffic sent by US LEC to Sprint, without any admission of wrongdoing or liability on the part of either Party; and

     WHEREAS, the Parties desire to avoid future billing disputes and for that purpose an agreement governing the conduct of fixture business regarding access services (“Access Services Agreement”) is being executed contemporaneously with this Agreement.

     NOW, THEREFORE, in consideration of the mutual benefit of the exchanges detailed below, the Parties agree as follows:

     1. Payments

     a. Within ten (10) business days of the execution of this Agreement, Sprint shall pay to US LEC the total sum of [***] by wire transfer which shall be deemed full payment in settlement of all invoices sent by US LEC to Sprint for Switched Access Service for CIC 333 for all billed 8YY usage, and for all other outstanding balances arising from US LEC invoices disputed by Sprint, [***]. Payment will be made by wire transfer to:

     [***]

     b. For all US LEC invoices for Switched Access Service [***], Sprint shall make payment to US LEC by a mutually agreed electronic means for all amounts not subject to a good faith dispute under the terms of the Access Services Agreement referenced in the recitals to this Agreement and as required by [***]. In each instance of a dispute, and in accordance with the terms of [***] Sprint shall deliver to US LEC a written statement of the amount in dispute, all reasons for the dispute, and provide to US LEC any documentation in Sprint’s possession supporting Sprint’s basis to dispute the invoice.

     2. Releases

     a. Except as set forth in this Agreement, Sprint releases US LEC, and its and their directors, officers, shareholders, trustees, employees, representatives, agents, independent

[***]   These portions of this exhibit have been omitted and filed separately with the Commission pursuant to a request for confidential treatment.

2

contractors, and attorneys from any and all claims arising from the billing and payment for Switched Access Services by US LEC to Sprint, including but not limited to the billing of Switched Access Service for 8YY Traffic, at any time up to and including [***], whether such claim is known or unknown, accrued or inchoate.

     b. Except as set forth in this Agreement, upon receipt of the payment required by Paragraph 1.a hereof, US LEC releases Sprint and its and their directors, officers, shareholders, trustees, employees, representatives, agents, independent contractors, and attorneys from any and all claims arising out of the non-payment or dispute of invoices that have been issued by US LEC to Sprint for Switched Access Services, including 8YY Traffic, at any time up to and including [***], whether such claim is known or unknown, accrued or inchoate.

     3. Definitions

     For purposes of this Agreement the following definitions shall control:

     a. “Switched Access Service” means a service providing access to the switched - - network of a telecommunications carrier for the purpose of originating or terminating inter-exchange interstate and intrastate telecommunications. Switched Access Service does not include local switched service, but does include 8YY Traffic sent by US LEC to Sprint.

     b. “ILEC” means an incumbent local exchange carrier (as that term is defined in 47 CFR § 61.26(a)(2)).

     c. “Proprietary Information” means information that is marked or otherwise specifically identified in writing as proprietary, confidential or trade secret. Proprietary Information includes, but is not limited to, the terms of this Agreement, and the discussions, correspondence and negotiations that led to the Agreement,

[***]  These portions of this exhibit have been omitted and filed separately with the Commission pursuant to a request for confidential treatment.

3

     d. “8YY Traffic” and “8YY Calls” means interstate and intrastate calls, including Wireless 8YY Calls, intended to terminate to a telephone number for which there is no charge to the calling party by an interexchange carrier for making and completing the calls.

     e. “Wireless 8YY Traffic” or “Wireless 8YY Calls” means interstate and intrastate 8YY calls from CMRS Providers’ subscribers.

     f. “Government Agency” means a federal or state board, agency, authority, commission, or other entity with jurisdiction over the traffic which is the subject of this Agreement, including but not limited to the Federal Communications Commission (“FCC”).

     g. “Act” means the Communications Act of 1934, as amended by the Telecommunications Act of 1996.

     h. “CMRS Provider” means an entity that provides mobile service, as defined in Section 153(27) of the Act, for profit (i.e. with the intent of receiving compensation or monetary gain), is an interconnected service; and is available to the public, or to such classes of eligible users as to be effectively available to a substantial portion of the public.

     4. Fees and Expenses

     Each Party will pay its own attorneys’ fees and expenses.

     5. Successors and Assigns

     This Agreement shall be binding upon the Parties’ successors and assigns.

     6. Confidential Nature of Settlement

     a. The Parties agree to hold in the strictest confidence the substance of any and all settlement negotiations, documents exchanged during settlement discussions, or information learned or acquired during settlement discussions, as well as the terms of any final agreements that may be reached as a result of settlement discussions (collectively, “Settlement Information”), and not to reveal any such Settlement Information to any person except as

4

provided herein.

     b. Each party will hold in confidence Proprietary Information disclosed by the other party except if it (a) was previously known by the receiving party free from any obligation to keep it confidential, (b) is independently developed by the receiving party, (c) becomes publicly available, and/or (d) is disclosed to the receiving party by a third party without breach of any confidentiality obligation. Proprietary Information may be disclosed to an entity or person that controls a party (including such controlling party’s directors, officers and shareholders), and to a party’s legal counsel, auditors and investment advisers, provided that such representatives are bound by appropriate confidentiality obligations that by their terms include the information considered Proprietary Information hereunder. Proprietary Information may also be used in any proceeding between the Parties to establish rights and obligations under this Agreement.

     c. If either Party is required to disclose Proprietary Information in judicial or administrative proceedings, such Party will, unless prohibited by applicable law or the terms of the applicable order, (i) give the other Party prompt written notice and the opportunity, in advance of such disclosure, to seek protective arrangements and will cooperate with the other Party (at such other Party’s expense) in that regard, and (ii) disclose only that Proprietary Information required to be disclosed.

     d. US LEC and Sprint may each issue a press release regarding the settlement and this Agreement, which may include statements as to financial impact but not the specific financial terms, or as may be required by the securities laws as their respective securities counsel may advise.

5

     7. Authority.

     a. US LEC Corp. has full corporate and other authority to execute and deliver this Agreement, including but not limited to the release, to perform its obligations hereunder, and to consummate the transactions contemplated hereby on behalf of US LEC.

     b. US LEC has duly executed and delivered this Agreement, and this Agreement constitutes (when executed and delivered) the legal, valid and binding obligation of US LEC, and is enforceable against it in accordance with its terms, except that such enforcement (i) may be limited by bankruptcy, insolvency, moratorium or similar laws affecting creditors’ rights generally, and (ii) is subject to the availability of equitable remedies, as determined in the discretion of the court before which such a proceeding may be brought.

     c. Sprint has full corporate and other authority to execute and deliver this Agreement, including but not limited to the releases, to perform its obligations hereunder, and to consummate the transactions contemplated hereby.

     d. Sprint has duly executed and delivered this Agreement, and this Agreement constitutes (when executed and delivered) the legal, valid and binding obligation of Sprint, and is enforceable against it in accordance with its terms, except that such enforcement (i) may be limited by bankruptcy, insolvency, moratorium or similar laws affecting creditors’ rights generally, and (ii) is subject to the availability of equitable remedies, as determined in the discretion of the court before which such a proceeding may be brought.

     8. No Third Party Beneficiaries

     This Agreement does not provide and is not intended to provide third parties with any remedy, claim, liability, reimbursement, cause of action, or other privilege.

6

     9. Entire Agreement

     This Agreement and the Access Services Agreement referenced in the recitals to this Agreement contains the entire understanding between Sprint and US LEC with respect to the resolution of the matters addressed in this Agreement. Nothing contained in this Agreement shall have the effect of impairing US LEC’s rights or Sprint’s rights under the US LEC tariffs or under applicable law, except as specifically set forth in this Agreement or in the Access Services Agreement.

     10. Preparation of Document and Effectiveness

     Each Party has participated in the creation of this Agreement. No legal principle interpreting the Agreement against the drafter will apply. Each Party in entering into this Agreement has completely read and fully understood the terms and conditions of the Agreement. This Agreement shall not become effective unless and until the Access Services Agreement referenced in the recitals to this Agreement is fully executed. If the Access Services Agreement is not executed within five (5) business days of the date of execution of this Agreement, or if the payment contemplated by paragraph 1.a. of this Agreement is not received, then this Agreement shall become void.

     11. No Admission

     Neither any provision of this Agreement taken individually nor the Agreement taken as a whole is to be construed as an admission of liability by any of US LEC, Sprint, or their past and current directors, stockholders, officers, employees, representatives, agents, assignors or assignees.

7

     12. Counterparts

     The parties agree that this Agreement may be executed in a number of counterparts, each of which shall be considered an original instrument, but all of which together shall be considered but one and the same instrument. This Agreement shall be binding on all signatories hereto, even if executed in any number of counterparts,

     13. Notices

     All notices required or permitted under this Agreement and all requests for approvals, consents, and waivers must be in writing and must be delivered by a method providing for proof of delivery (including express courier if receipt is acknowledged by the recipient) and will be deemed delivered when actually received. Fax and e-mail delivery methods do not constitute written notice. Any notice or request will be delivered to the addresses specified below.

     If to US LEC:

Thomas Gooley
Vice President-Treasurer
US LEC Corp.
6801 Morrison Boulevard
Morrocroft III
Charlotte, NC 28211
Fax number: 704-602-1133
e-mail: tgooley@uslec.com

     with a copy to

General Counsel
US LEC Corp.
6801 Morrison Boulevard
Morrocroft III
Charlotte, NC 28211
Fax number: 704-319-3007

If to Sprint:

Director, Access Verification
6500 Sprint Parkway
KSOPHL0402-4A153
Overland Park, KS 66251

8

     with a copy to:

David Nall
Director, Government Affairs — Wireline
401 9th Street N.W.
Suite 400
DCWAS0101-462
Washington, DC 20004-2133

     and

Joseph P. Cowin
Senior Counsel
6450 Sprint Parkway
KSOPHN02I4 — 2A62l
Overland Park, KS 66251

9

     14. Governing Law

     a. This Settlement Agreement will be governed by the Federal Communications Act, 47 USC § 151 et seq., rulings of the FCC and by the laws of the state of North Carolina, without regard to its choice of law provisions.

Executed on behalf of	US LEC CORP., US LEC OF NORTH CAROLINA INC., US LEC OF GEORGIA INC., US LEC OF ALABAMA INC., US LEC OF TENNESSEE INC., US LEC OF SOUTH CAROLINA INC., US LEC OF PENNSYLVANIA INC., US LEC OF VIRGINIA L.L.C., US LEC OF MARYLAND INC., US LEC OF FLORIDA INC., and US LEC COMMUNICATIONS INC.
	By:	/s/ J.L. Patrick
	Print Name	J.L. Patrick
	Title:	EVP/CFO
	Date:	2/16/06
	SPRINT COMMUNICATIONS COMPANY, L.P.
	By:	/s/ Kathryn B. Lawler
	Print Name:	Kathryn B. Lawler
	Title:	Director, Access Verification
	Date:	2/16/06

10

EXHIBIT A

Sprint Local Telephone Operating Companies

Sprint – Florida, Incorporated
Carolina Telephone and Telegraph Company
United Telephone — Southeast, Inc. (Operates in Tennessee and Virginia)
United Telephone Company of the Carolinas
Central Telephone Company
Central Telephone Company of Virginia
The United Telephone Company of Pennsylvania
United Telephone Company of New Jersey, Inc.
United Telephone Company of Ohio
United Telephone Company of Indiana, Inc.
United Telephone Company of Texas, Inc.
Central Telephone Company of Texas
Sprint Missouri, Inc.
United Telephone Company of Kansas
United Telephone Company of South central Kansas
United Telephone Company of Eastern Kansas
United Telephone Company of Southeastern Kansas
Sprint Minnesota, Inc.
United Telephone Company of the West
United Telephone Company of the Northwest

Sprint Local CICs billed by US LEC

[***]

[***]  These portions of this exhibit have been omitted and filed separately with the Commission pursuant to a request for confidential treatment.

11

EX-10.2

Exhibit 10.2

AGREEMENT

     This Settlement Agreement (the “Agreement”) is entered into as of this 17th day of February, 2006, between MCI, LLC (formerly known as MCI, Inc.) and all of its subsidiaries (collectively herein “MCI”), including but not limited to MCI Network Services, Inc. (formerly known as MCI WORLDCOM Network Services, Inc.) and MCI Communications Services, Inc. (formerly known as MCI WORLDCOM Communications, Inc.) and US LEC Corp., and all of its affiliates (including subsidiaries), including but not limited to US LEC Communications Inc., US LEC of Alabama Inc., US LEC of Florida Inc., US LEC of Georgia Inc., US LEC of Maryland Inc., US LEC of North Carolina Inc., US LEC of South Carolina Inc., US LEC of Pennsylvania Inc., US LEC of Tennessee Inc., and US LEC of Virginia LLC (collectively “US LEC”). (MCI and US LEC are referred to together as the “Parties” and individually as a “Party.”)

     WHEREAS, disputes have arisen among the Parties regarding US LEC’s charges to MCI for certain Switched Access Services in connection with 8YY Traffic sent by US LEC to MCI for delivery to MCI’s 8YY customers; and

     WHEREAS, on or about April 26, 2005, US LEC filed an action in the United States District Court for the Western District of North Carolina, Charlotte Division, Civil Action No. 3:05-CV-171-MU against MCI, alleging that MCI wrongfully has refused to pay US LEC for Switched Access Services US LEC has rendered to MCI (the “Litigation”); and

     WHEREAS, MCI filed an Answer and Counterclaim in the Litigation on or about May 17, 2005 and filed an Amended Counterclaim on or about October 3, 2005, alleging that US LEC wrongfully had billed it certain access charges in connection with 8YY Traffic, to which US LEC filed Answers on June 8, 2005 and October 21, 2005, respectively; and

     WHEREAS, the Parties desire to enter into this Agreement to resolve all disputes between MCI and US LEC relating to US LEC’s Switched Access Services billed by US LEC to MCI, without any admission of wrongdoing or liability on the part of either Party, and to set certain future rights, obligations and other business arrangements of the Parties, and to settle the Litigation.

     NOW, THEREFORE, in consideration of the mutual benefit of the exchanges detailed below, the Parties agree as follows:

1. Definitions.

     For purposes of this Agreement the following definitions, in addition to any other definitions specified herein, shall control:

     a. “Proprietary Information” means information that is marked or otherwise specifically identified in writing as proprietary, confidential or trade secret by the disclosing Party. Proprietary Information includes, but is not limited to, all documents and testimony identified or marked as “Confidential” during the course of the Litigation, the terms of this Agreement, and the discussions, correspondence and negotiations that led to this Agreement.

     b. “Switched Access Service” means a service providing access to the switched network of a Telecommunications Carrier for the purpose of originating or terminating interexchange interstate and intrastate telecommunications between MCI’s interexchange carrier network and an MCI customer or subscriber placing or receiving an interexchange call. Switched Access Service does not include local exchange service. Switched Access Service includes (i) access service for traffic in which (A) the interexchange call originates and terminates on the public switched telephone network, (B) both the called party and the calling party use ordinary customer premises equipment, and (C) no net protocol conversion occurs and

2

no enhanced functionality to either the calling or the called party is provided by the provider’s use of IP technology, even-though the call may at some point in the transmission be converted to Internet Protocol (“IP”); (ii) (prospectively from the effective date of any such FCC orders) services that the FCC orders shall be subject to switched access charges; and (iii) interexchange access service for 8YY Traffic sent by US LEC to MCI regardless of whether US LEC provides the local dial tone to the end user calling the MCI 8YY customer provided that no carrier other than US LEC performs and actually assesses MCI a charge, for which MCI is liable, for an originating end office local switching function to a given call.

     c. “8YY Traffic” and “8YY Calls” mean interstate and intrastate calls intended to terminate to a telephone number for which there is no charge to the calling party by an interexchange carrier for making and completing the calls, and includes, but is not limited to, calling parties making calls from businesses, institutions or other entities that may obtain local dial tone from carriers other than US LEC.

     d. “Act” means the Communications Act of 1934, as amended by the Telecommunications Act of 1996.

     e. “Telecommunications Carrier” means any provider of telecommunications services (as such term is defined as of the Effective Date in Section 3(46) of the Act (47 U.S.C. § 153(46))) regulated under Title II of the Act, except that such term shall not include aggregators of telecommunications services as defined as of the Effective Date by Section 226 of the Act.

     f. “CMRS Provider” means an entity that provides mobile service, as defined as of the Effective Date in Section 3(27) of the Act (47 U.S.C. § 153(27)), for profit (i.e., with the intent of receiving compensation or monetary gain), where the mobile service is an

3

interconnected service and is available to the public, or to such classes of eligible users as to be effectively available to a substantial portion of the public, or that provides the functional equivalent service of such mobile service.

     g. “Wireless 8YY Traffic” or “Wireless 8YY Calls” means interstate and intrastate 8YY Calls from CMRS Providers’ subscribers.

     h. “Effective Date” means the date of execution of this Agreement by the second of the two Parties to execute it.

     i. “Government Agency” means a federal or state board, agency, authority, commission, or other entity with jurisdiction over the traffic which is the subject of this Agreement, including but not limited to the Federal Communications Commission (“FCC”).

     j. “US LEC End Users” means customers of US LEC that are not Telecommunications Carriers or CMRS Providers, and who subscribe to US LEC services or facilities either through US LEC tariffs or contracts, which services include, among other services, direct connectivity with US LEC for delivery of 8YY Calls to the appropriate interexchange carriers. US LEC End Users specifically include businesses, institutions, and other entities that may obtain local dial tone from carriers other than US LEC, but deliver outbound 8YY Calls to US LEC via a direct connection where no other carrier performs and actually assesses MCI a charge, for which MCI is liable, for an originating end office local switching function on a given call.

     2. Consideration.

     a. Without either Party admitting any wrongdoing with respect to any invoice sent to MCI by US LEC for Switched Access Service or the non-payment of any such invoice, within ten (10) business days of the Effective Date, MCI will pay to US LEC the total sum of [***]

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

4

by check (with the check to be received by US LEC within the ten (10) business day period) in full settlement of all claims released in this Agreement.

     b. Upon payment by MCI to US LEC in accordance with paragraph 2.a., US LEC agrees that it will take all necessary actions to credit, or otherwise extinguish, the billed and outstanding amounts due from MCI on the accounts listed on Schedule 1 attached hereto and incorporated herein (or any account(s) subsequently discovered by a Party with notice of such additional account(s) provided to the other Party with sufficient information to demonstrate that the account included Switched Access Service charges [***] and the entity to which the bill was directed was a former or existing MCI company or subsidiary [***]) for any Switched Access Service for the usage period from [***] associated with any such outstanding balances for Switched Access Services. Both Parties represent that they share a good faith belief as of the Effective Date that the carrier accounts listed on the attached Schedule 1 (which include as part of the carrier account, the various Carrier Identification Codes (“CICs”) assigned to MCI and used by US LEC for billing purposes) are the carrier accounts of the MCI companies and subsidiaries and comprise all the MCI accounts and reflect all the MCI CICs for which US LEC has assessed any unpaid or disputed Switched Access Service charges upon MCI companies and subsidiaries for [***], though this representation does not preclude either Party from subsequent discovery in good faith and notice as provided in this paragraph.

     c. The Parties agree further that for services provided to MCI by any current or future US LEC company, affiliate, subsidiary, successor or assign:

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

5

     (i) [***];

     (ii) [***];

     (iii) [***];

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

6

     (iv) The parties agree that [***], and such services include but are not limited to [***] and all database queries including database queries for Wireless 8YY Calls. Unless expressly stated in this Agreement, the rules and regulations from the applicable US LEC tariff will govern the provision of Switched Access Services by US LEC, subject to MCI’s right to challenge the validity or applicability of the rules and regulations of US LEC’s tariff, unless the challenge is inconsistent with the terms of this Agreement.

     d. [***], MCI will retain the right to dispute in good faith, in accordance with the process set forth in the applicable US LEC tariff, US LEC’s invoices for Switched Access Services, but not on any basis that challenges US LEC’s right to bill for Wireless 8YY Calls or otherwise is inconsistent with this Agreement.

     e. [***], MCI will retain the right to challenge US LEC’s rates for intrastate Switched Access Service, but only as part of a general challenge to competitive carrier intrastate switched access rates or the applicability of the rate elements for

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

7

intrastate Wireless 8YY Calls in a proceeding before a Government Agency, so long as US LEC’s right to bill for Wireless 8YY Calls is not challenged. In the event a Government Agency enters an order in such a proceeding which expressly directs that competitive carrier intrastate access rates for Wireless 8YY Calls be reduced, both retroactively and prospectively, [***] then, as between MCI and US LEC, the provisions of such order and any changes mandated thereby will apply prospectively only, except as set forth in this subsection (e). To the extent that US LEC’s aggregate billings (i.e. for all states) for intrastate Wireless 8YY Traffic (“Aggregate Intrastate Wireless 8YY Charges”) to MCI [***] at the time the Government Agency order becomes effective, the changes mandated thereby may be [***];

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

8

     f. US LEC shall cooperate with MCI’s requests for, and shall use all commercially reasonable efforts to provide either separately or on US LEC’s invoices for interstate and intrastate access traffic, such data as is reasonably necessary to permit [***] and to [***] in the industry Local Number Portability Databases or other industry databases that reflect assignment of the telephone numbers (a “US LEC Number”) [***] in the industry Local Number Portability Databases (a “non-US LEC Number”); provided, however, that MCI agrees that it will cooperate with US LEC, and shall use commercially reasonable efforts, to identify the type of data needed by MCI and any data already available, or made available, to MCI that would permit [***]. This paragraph does not obligate US LEC to purchase or upgrade its billing systems in any way, nor to take extraordinary measures to provide such data.

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

9

     g. Notwithstanding any other provision of this Agreement, a Party may file or otherwise disclose this Agreement or portion thereof with any governmental person or body to the extent required by law, provided that such Party shall do so only to the extent necessary (in whole or in part) and shall take all reasonable steps otherwise to preserve the confidentiality of this Agreement as provided by Section 8 of this Agreement, including where appropriate disclosure under seal. In addition, if, and to the extent, necessary to give effect to the terms of this Agreement, US LEC shall amend any of its tariffs.

3. Releases.

     a. Except as set forth in this Agreement, MCI releases US LEC and its and their directors, officers, shareholders, employees, representatives, agents, independent contractors, and attorneys from

(i)	any claims, counterclaims or defenses that were made in the Litigation relating to the time period [***];
(ii)	any claims, counterclaims, or defenses arising from the nucleus of operative facts at issue in the Litigation that occurred [***];
(iii)	any claims arising from the conduct of the Litigation; and
(iv)	any claims, counterclaims or defenses related to the services provided by US LEC to MCI, including but not limited to the billing of Switched Access Service for 8YY Traffic, provided during the usage period [***],

regardless of whether any of the foregoing in subparagraphs a. i-iv is known or unknown, accrued or inchoate.

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

10

     b. Except as set forth in this Agreement, upon receipt of the payment required by Paragraph 2.a hereof, US LEC releases MCI and its and their directors, officers, shareholders, trustees, employees, representatives, agents, independent contractors, and attorneys from

(i)	any claims, counterclaims or defenses that were made in the Litigation relating to the time period [***];
(ii)	any claims, counterclaims, or defenses arising from the nucleus of operative facts at issue in the Litigation that occurred [***];
(iii)	any claims arising from the conduct of the Litigation; and
(iv)	any claims, counterclaims or defenses related to the services provided by US LEC to MCI, including but not limited to the billing of Switched Access Service for 8YY Traffic, [***],

regardless of whether any of the foregoing in subparagraphs b. i-iv is known or unknown, accrued or inchoate.

     c. MCI hereby represents, warrants and agrees that (i) it has not assigned or otherwise divested itself of any part of the claims being released hereby, (ii) no person or entity has any interest or ownership of the claims covered by this Agreement, and (iii) MCI will indemnify, defend and hold US LEC harmless from and against any or all of any part of the claims so assigned or otherwise divested which is or are brought against US LEC.

     d. US LEC hereby represents, warrants and agrees that (i) it has not assigned or otherwise divested itself of any part of the claims being released hereby, (ii) no person or entity

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

11

has any interest ownership of the claims covered by this Agreement, and (iii) US LEC will indemnify, defend and hold MCI harmless from and against any or all of any part of the claims so assigned or otherwise divested which is or are brought against MCI.

     e. Notwithstanding anything to the contrary contained in this Section 3, nothing in this Agreement shall release any claims for amounts due (if any) for direct end office trunks purchased by MCI from US LEC pursuant to US LEC’s FCC switched access tariff.

     4. Dispute Resolution.

     a. In the event that a dispute should arise concerning the interpretation of or performance of this Agreement, the Parties agree that resolving the dispute(s) as promptly and efficiently as possible will best serve their respective interests. The disputing Party must submit in writing to the other Party the basis of the dispute in sufficient detail to permit the other Party to respond to the dispute.

     b. If the Parties cannot resolve a dispute concerning the interpretation of or performance of this Agreement through negotiation within sixty (60) days after one Party notifies the other Party of the dispute, then the dispute shall be referred to one designated representative from MCI at the director level or above and one representative from US LEC at the director level or above. If the Parties remain unable to resolve their dispute within sixty (60) days after the referral set forth above, then the dispute shall be referred to one designated representative from MCI at the vice president level or above (or their designee) and one representative from US LEC at the vice president level or above.

     c. If the dispute is not resolved at the vice president level or above within 30 days after the final escalation set forth in paragraph 4.b above, then either Party may seek resolution of the dispute by binding arbitration administered by the American Arbitration Association in

12

accordance with its Commercial Arbitration Rules, and judgment on the award rendered by the arbitrator(s) may be entered in any court having jurisdiction. The arbitration shall be held in Charlotte, North Carolina.

     (d) The provisions of this Paragraph 4 shall not be construed to prohibit either Party from seeking preliminary injunctive relief in any court of competent jurisdiction after exhaustion of the escalation procedures, provided that no court action may supersede a binding arbitration initiated under subsection 4.c. above for resolution of the merits of such dispute. Any litigation seeking a preliminary injunction may be brought only with notice to the other Party, and each Party hereby waives the right to seek ex parte relief.

5. Dismissal of Pending, Litigation and Return of Discovery Material.

     a. Immediately upon receipt of the payment to US LEC required in Paragraph 2.a hereof, the Parties shall file a Stipulation of Dismissal, with prejudice, of the Litigation.

     b. Within five (5) business days of the filing of the Stipulation of Dismissal, and to the extent permitted by applicable law, the Parties shall each return to the producing Party all material produced during discovery, including deposition transcripts and exhibits, and neither Party nor its counsel shall keep any copy of any document produced in discovery by the other party for any reason, except with respect to a copy of any such document produced to a Government Agency in response to a duly authorized request from such Agency, and only for as long as such Agency requires such document to be kept. Neither Party has any obligation to retrieve any document which was filed with the Court, either under seal or as an attachment or an exhibit. To the extent that any information exchanged in discovery may have been used by counsel and become part of attorney work product, that work product shall be destroyed by

13

counsel within the time period contemplated by this paragraph, and such counsel shall so certify to the other Party in writing.

     (c) The Parties agree to execute and exchange any such further documentation as may be reasonably required to give effect to the Agreement

6. Fees and Expenses.

     Each Party will pay its own attorneys’ fees and expenses associated with the Litigation and this Agreement, except to any extent otherwise provided for herein.

7. Successors and Assigns.

     This Agreement shall be binding upon, and inure to the benefit of, the Parties’ successor and assigns.

8. Confidential Nature of Settlement.

     a. The Parties agree to hold in the strictest confidence the substance of any and all settlement negotiations, documents exchanged during settlement discussions, or information learned or acquired during settlement discussions, as well as the terms of any final agreement that may be reached as a result of settlement discussions (collectively, “Settlement Information”), and not to reveal any such Settlement Information to any person except as provided herein. The existence of this Agreement is not confidential, but the terms of this Agreement are confidential.

     b. Each Party will hold in confidence Proprietary Information disclosed by the other Party except if it (a) was previously known by the receiving Party prior to the beginning of the Litigation free from any obligation to keep it confidential, (b) is independently developed by the receiving Party, (c) becomes publicly available except through a breach of this provision by the receiving Party, and/or (d) is disclosed to the receiving Party by a third party without breach of

14

any confidentiality obligation. Only the exception in clause (c) of the prior sentence shall apply to the Settlement information. Proprietary Information or Settlement Information may be disclosed to an entity or person that controls a Party (including such controlling party’s directors officers and controlling shareholders), to a Party’s legal counsel, senior lenders and their counsel and auditors, provided that such representatives are bound by appropriate confidentiality obligations, and in such regulatory filings as may by required, and then only to the extent required, by the securities laws as the Parties’ respective securities counsel may advise. No Proprietary Information or Settlement Information can be used or introduced by either Party as evidence in any other litigation, arbitration or state or agency proceeding of any kind, except that Proprietary Information or this Agreement and its terms may be used in any proceeding between the Parties to establish rights and obligations under this Agreement if such information is properly filed with the Court under seal and subject to a protective order protecting it from disclosure to persons other than the Parties and court personnel.

     c. If, after the Effective Date of this Agreement, either Party is required to disclose Proprietary Information or Settlement Information or this Agreement in judicial or administrative proceedings, such Party will, unless prohibited by applicable law or the terms of the applicable order, (i) give the other Party prompt written notice and the opportunity, sufficiently in advance of such disclosure, if feasible, to seek protective arrangements and will cooperate reasonably with the other Party (at such other Party’s expense) in that regard, and (ii) disclose only that portion of the Proprietary Information or Settlement Information or Agreement required to be disclosed.

     d. Either Party may issue a press release regarding the settlement that may include any information that may be required to be included in any filing with the Securities and

15

Exchange Commission by the securities laws as their respective securities advisors may advise, except the release may state that the Parties have settled this dispute concerning Switched Access Service and the Litigation but shall not include the specific financial terms of the settlement. The Parties agree to exchange a copy of such portion of the press release that relates to the discussion of the settlement of this dispute concerning Switched Access Service or the Litigation with reasonable time for review prior to its publication, and shall obtain the consent of the other Party to the text of the press release prior to the publication of the press release, which consent shall not unreasonably be withheld.

     e. The Parties acknowledge and agree that any breach of the obligations of this Paragraph 8 will cause damage to the other Party and the breaching party shall be liable to the non-breaching party for such damages and subject to any other remedies at law or equity.

9. Non-Disparagement.

     a. Beginning as of the Effective Date of this Agreement, MCI and US LEC agree to use reasonable efforts to ensure that their respective directors, officers, senior management personnel, attorneys, or lobbyists (collectively “Representatives”) do not make any untrue, misleading, or defamatory statements or representations, either orally or in writing, to any third persons [***] relating to the nucleus of operative facts at issue in the Litigation, or if either Party becomes aware of such conduct by its Representatives, to make reasonable efforts to stop the conduct.

     b. The Parties acknowledge and agree that any breach of the obligations of this Paragraph 9 may cause harm to the other Party and its affiliates, and that therefore either US LEC or MCI, whichever is harmed, shall be entitled to injunctive relief prohibiting the breaching

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

16

Party from any further violation or threatened future violation of this Paragraph 9. The Parties agree that it is not a violation of this Paragraph 9 for a Party to participate in a challenge to competitive carrier switched access rates or the applicability of the rate elements for 8YY Wireless Calls, or in a proceeding before a Government Agency, or in a lawsuit before a court or arbitration panel, provided that no untrue, misleading or defamatory statements or representations [***] are made (which provision does not preclude a Party from referring to prior orders or other prior official statements of a court or Government Agency addressing such topics) and that, in such proceeding, no claims are asserted against US LEC that are in any way inconsistent with the provisions of this Agreement.

10. No Third Party Beneficiaries.

     This Agreement does not provide and is not intended to provide third parties not expressly enumerated in this Agreement with any remedy, claim, liability, reimbursement, cause of action, or other privilege.

11. Entire Agreement.

     This Agreement contains the entire understanding between MCI and US LEC with respect to the resolution of the matters addressed in this Agreement.

12. Preparation of Documents and Effectiveness.

     Each Party has participated in the creation of this Agreement. No legal principle interpreting the Agreement against the drafter will apply. Each Party in entering into this Agreement has completely read and fully understood the terms and conditions of the Agreement. The Parties acknowledge that they have had the opportunity to consult with legal counsel of their

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

17

choosing prior to entering into this Agreement, that they know and understand this Agreement’s contents, and that they are executing this Agreement knowingly and voluntarily.

13. No Admission.

     Neither any provision of this Agreement taken individually nor the Agreement taken as a whole is to be construed as an admission of liability by any of US LEC, MCI, or their directors, stockholders, officers, employees, representatives, agents, assignors or assignees or as an admission of any allegation or argument made by any person in the Litigation, all of which liabilities, allegations, and argument have been expressly denied.

14. Counterparts.

     The parties agree that this Agreement may be executed in a number of counterparts, each of which shall be considered an original instrument, but all of which together shall be considered but one and the same instrument, and may be delivered by facsimile from one Party to the other when executed. This Agreement shall be binding on all signatories hereto, even if executed in any number of counterparts.

15. Notices.

     All notices required or permitted under this Agreement and all requests for approvals, consents, and waivers must be in writing and must be delivered via hand-delivery or overnight cornier delivery and will be deemed delivered when actually received. Fax and e-mail delivery methods do not constitute written notice. Any notice or request will be delivered to the addresses specified below.

     If to US LEC:

Thomas Gooley
Vice President-Treasurer
US LEC Corp.
6801 Morrison Boulevard

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Morrocroft III
Charlotte, NC 28211
Fax number: 704-602-1133
e-mail: tgooley@uslec.com

   with a copy to

General Counsel
US LEC Corp.
6801 Morrison Boulevard
Morrocroft III
Charlotte, NC 28211
Fax number: 794-319-3007

     If to MCI:

Peter H. Reynolds
Director, National Carrier Contracts and Initiatives
Verizon Business
22001 Loudoun County Parkway
Suite G2-3-6l4
Ashburn, VA 20147
Fax number (703) 886-0118
e-mail: Peter.H.Reynolds@verizonbusiness.com

with a copy to:

Brian H. Benjet
Verizon Business
1133 19^th Street, NW
Washington, DC 20036
Fax Number (202) 736-6072
e-mail: brian.benjet@verizonbusiness.com

A Party may change the name and/or address to which notice is to be delivered by sending notice to the applicable notice address.

16. Power, Authority and Legal Capacity to Bind.

     Each Party represents that it has the requisite power, authority and legal capacity to make, execute, and deliver this Agreement and to fully perform its duties and obligations under this Agreement, and that neither this Agreement nor the performance by such Party of any duty or obligation under this Agreement will violate any other contract, agreement, covenant or

19

restriction by which such Party is bound. To the extent that this Agreement is in conflict with any other contract, agreement, covenant or restriction by which such Party is bound, the Parties hereby agree that such conflict is not material.

17. Governing Law.

     This Agreement will be governed by the laws of the state of North Carolina, without regard to its choice of law provisions.

18. Waiver Amendment, Modification and Interpretation.

     No waiver, amendment or modification of any provision of this Agreement shall be effective unless in writing and signed by the Parties. My waiver or consent shall be effective only in the specific instance and for the specific purpose for which it is given. No prior drafts of this Agreement, or any negotiations regarding the terms contained in these drafts, or any related agreements shall be admissible in any court to vary or interpret the terms of this Agreement, the Parties hereto agreeing that this Agreement constitutes the final expression of the Parties’ agreement and supersedes all prior written and oral understandings regarding the terms of this Agreement.

Executed on behalf of	US LEC CORP., US LEC OF ALABAMA INC., US LEC OF FLORIDA INC., US LEC OF GEORGIA INC., US LEC OF MARYLAND INC., US LEC OF NORTH CAROLINA INC., US LEC OF PENNSYLVANIA INC., US LEC OF SOUTH CAROLINA INC., US LEC OF TENNESSEE INC., US LEC OF VIRGINIA L.L.C., and US LEC COMMUNICATIONS INC.
	By:	/s/ Thomas R. Gooley
	Print Name:	Thomas R. Gooley
	Title:	Vice President
	Date:	2/17/06

20

Executed on behalf of:	MCI, LLC, MCI NETWORK SERVICES, INC., AN MCI COMMUNICATIONS SERVICES, INC.
	By:	/s/ Randal S. Milch
	Print Name:	Randal S. Milch
	Title:	Senior Vice President — Legal & External Affairs
	Date:	7 February 2006

21

Schedule 1

MCI Accounts
As of 11/30/2005
[***]

[***] These portions of this exhibit have been omitted and filed separately with Commission pursuant to a request for confidential treatment.

22

EX-31.1

Exhibit 31.1

CERTIFICATION

     I, Aaron D. Cowell, Jr., certify that:

     1. I have reviewed this quarterly report on Form 10-Q of US LEC Corp.;

     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 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.

Date: May 15, 2006

By:	/s/ Aaron D. Cowell, Jr. Aaron D. Cowell, Jr.
	Chief Executive Officer

31

EX-31.2

Exhibit 31.2

CERTIFICATION

     I, J. Lyle Patrick, certify that:

     1. I have reviewed this quarterly report on Form 10-Q of US LEC Corp.;

     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 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.

Date: May 15, 2006

By:	/s/ J. Lyle Patrick J. Lyle Patrick
	Chief Financial Officer

32

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of US LEC Corp. (the “Company”) on Form 10-Q for the period ended March 31, 2006 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Aaron D. Cowell, Jr., Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

     (1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

     (2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ Aaron D. Cowell, Jr. Aaron D. Cowell, Jr.
Chief Executive Officer

May 15, 2006

33

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of US LEC Corp. (the “Company”) on Form 10-Q for the period ended March 31, 2006 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, J. Lyle Patrick, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

     (1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

     (2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ J. Lyle Patrick J. Lyle Patrick

Chief Financial Officer

May 15, 2006

34