EXHIBIT 99.1

j2 Global Reports Q2 2003 Earnings per Share of $0.47

Company’s fiscal 2003 earnings per share and revenue estimates revised upwards

LOS ANGELES, July 21, 2003—j2 Global Communications, Inc. [NASDAQ: JCOM], the provider of outsourced, value-added messaging and communications services, today reported financial results for the second quarter, ended June 30, 2003.

Second Quarter 2003 Results

Total revenues for the second quarter of 2003 increased 51% to $17.0 million compared to $11.3 million for the second quarter of 2002. Total revenues in Q2 2003 grew 12% versus Q1 2003 revenues of $15.2 million.

Earnings Before Taxes for Q2 2003 increased to $6.2 million, or 88%, compared to $3.3 million for the second quarter of 2002. Net earnings for Q2 2003 were $5.9 million, compared to $3.3 million in Q2 2002 and $5.0 million for Q1 2003. Net earnings per share on a fully diluted basis for Q2 2003 increased to $0.47 per share compared to $0.28 per share in Q2 2002 and $0.41 per share in Q1 2003.

Key financial results for the second quarter 2003 versus the second quarter of 2002 are as follows:

	Quarter	Quarter
	Ended	Ended
	Q1 2003	Q1 2002
Revenue	$17.0 million	$11.3 million
Earnings Before Taxes	$6.2 million	$3.3 million
Net Earnings	$5.9 million	$3.3 million
Net Earnings per fully diluted share	$0.47	$0.28
Free Cash Flow (1)	$7.1 million	$2.9 million

                            (1)    Net cash provided by operating activities, less expenditures on furniture, fixtures and equipment. A reconciliation to the most directly comparable GAAP financial measure is provided in the tables that follow this text.

“We are pleased with our performance during the second quarter of 2003, as we’re seeing continued strength in our Web channel, due in large part to the increased effectiveness of our lifecycle-management processes. In addition, we are also achieving results from our investments in Corporate Sales, our global network, and our product suite, including the recent launch of PaperMaster Pro,” said Scott Jarus, president of j2 Global. “Our revenue and earnings growth continue to reflect the value we are providing to our customers.”

2003 Business Outlook

Revised 2003 Estimates
In light of the Company’s performance through the first half of 2003, j2 Global today announced that it has revised upwards its 2003 revenue and net earnings per share estimate. In April 2003, the Company announced that it expected its revenue and net earnings per fully diluted share for 2003 to range from $66.0 to $69.0 million and $1.70 to $1.85, respectively. j2 Global now expects its 2003 revenue and net earnings per fully diluted share to exceed $69.6 million and $1.92, respectively. The following chart summarizes these revisions, which are based upon information as of the date of this press release:

	Revised	Previous
	Guidance	Guidance
Revenue	$69.6 million +	$66.0 — $69.0 million
Net Earnings per fully diluted share(1)	$1.92 +	$1.70 — $1.85

                       (1)   Revised guidance is based upon fully diluted shares of 12,781,584 as of July 14, 2003. Previous guidance was
based upon fully diluted shares of 12,595,775.

Q2 2003 Estimates
For the third quarter of 2003, j2 Global anticipates revenue to approximate $18.7 million and net earnings per fully diluted share to approximate $0.52.

	Quarter
	Ended
	Q2 2003
Revenue	$18.7 million
Net Earnings per fully diluted share(1)	$0.52

                      (1)    Guidance is based upon fully diluted shares of 12,781,584 as of July 14, 2003.

About j2 Global Communications

Founded in 1995, j2 Global Communications, Inc., provides outsourced, value-added messaging and communications services to more than four million customers around the world. j2 Global’s network spans more than 1,000 cities in 19 countries on five continents. The Company offers its patented services and software through three distinct sales channels: Web, Corporate and Licensed Services, and markets those services under the j2^®, eFax^®, jConnect^®, jFax^®, Consensus^TM, Hotsend^®, PaperMaster^®, Protofax^® and Documagix^® brands. As of June 30, 2003, j2 Global had achieved 25 consecutive quarters of revenue growth and six consecutive quarters of positive earnings. For more information about j2 Global, please visit www.j2global.com.

Contacts:

Christine Brodeur or C.J. Nance	Jeff Adelman
Socket Media, Inc.	j2 Global Communications, Inc.
310-829-0556 or 310-829-0534	323-372-3617
info@socketmedia.com	press@j2.com

“Safe Harbor” Statement Under the Private Securities Litigation Reform Act of 1995: Certain statements in this Press Release are “forward-looking statements” within the meaning of The Private Securities Litigation Act of 1995, particularly those contained in the “2003 Business Outlook” portion. These forward-looking statements are based on management’s current expectations or beliefs and are subject to a number of factors and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. These factors and uncertainties include, among other items: Ability to obtain telephone numbers in sufficient quantities on acceptable terms; subscriber growth and retention; uncertainties regarding the protection of proprietary technology or infringement of intellectual property of others; the risk of adverse changes in the U.S. or international regulatory environments surrounding unified messaging and communications; and other factors set forth in j2 Global’s filings with the Securities and Exchange Commission (“SEC”). For a more detailed description of the risk factors and uncertainties affecting j2 Global, refer to the Annual Report on Form 10-K filed by j2 Global on March 31, 2003 and the other reports filed by j2 Global from time to time with the SEC, each of which is available at www.sec.gov. The guidance provided in the “2003 Business Outlook” portion of this press release is based on limited information available to the Company at this time, which is subject to change. Although management’s expectations may change after the date of this press release, the Company undertakes no obligation to revise or update this guidance.

j2 Global Communications, Inc.
Unaudited Condensed Consolidated Statements of Operations
(in thousands, except share and per share amounts)

	Three months ended				Six months ended
	June 30,				June 30,
	2003		2002		2003		2002
Revenues
Subscriber	$	16,307	$	10,427	$	30,761	$	19,797
Advertising		609		705		1,221		1,532
Licensed services		121		174		263		357
Total revenue		17,037		11,306		32,245		21,686
Cost of revenues		3,247		2,701		6,257		6,142
Gross profit		13,790		8,605		25,988		15,544
Operating expenses:
Sales and marketing		2,866		1,434		5,376		2,731
Research and development		1,023		744		2,049		1,532
General and administrative		3,743		3,341		7,211		6,772
Total operating expenses		7,632		5,519		14,636		11,035
Operating earnings		6,158		3,086		11,352		4,509
Other income, net		69		232		143		325
Earnings before income taxes and cumulative effect
of change in accounting principle		6,227		3,318		11,495		4,834
Income tax expense		280		—		515		—
Earnings before cumulative effect of change in accounting
principle		5,947		3,318		10,980		4,834
Cumulative effect of change in accounting principle		—		—		—		225
Net earnings	$	5,947	$	3,318	$	10,980		5,059
Basic net earnings per share	$	0.53	$	0.31	$	0.98	$	0.47
Diluted net earnings per share	$	0.47	$	0.28	$	0.88	$	0.44
Basic weighted average shares
outstanding		11,309,927		10,757,212		11,227,714		10,743,383
Diluted weighted average shares
outstanding		12,601,585		11,814,344		12,440,135		11,527,657

j2 Global Communications, Inc.
Unaudited Condensed Consolidated Balance Sheets
(in thousands)

	June 30, 2003		December 31, 2002
ASSETS
Cash and cash equivalents	$	44,428	$	32,777
Short-term investments		2,079		—
Accounts receivable, net		5,234		5,082
Prepaid expenses and other		996		1,408
Total current assets		52,737		39,267
Furniture, fixtures and equipment, net		6,625		6,500
Goodwill and other purchased intangibles, net		17,616		17,324
Other assets		415		1,002
Total assets	$	77,393	$	64,093
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable and accrued expenses	$	3,462	$	3,948
Deferred revenue		3,514		2,615
Current portion of long-term debt		303		595
Total current liabilities		7,279		7,158
Long-term debt		221		252
Total liabilities		7,500		7,410
Total stockholders’ equity		69,893		56,683
Total liabilities and stockholders’ equity	$	77,393	$	64,093

j2 Global Communications, Inc.
Unaudited Condensed Consolidated Statements of Cash Flows
(in thousands)

	Three months ended						Six months ended
	June 30,						June 30,
	2003			2002			2003			2002
Cash flows from operating activities:
Net earnings	$	5,947		$	3,319		$	10,980		$	5,059
Adjustments to reconcile net earnings to net cash
provided by operating activities:
Depreciation and amortization		1,015			853			1,934			1,765
Compensation in exchange for note reduction		43			43			87			87
Non-cash income tax expense		—			—			203			—
Compensation in exchange for common stock		—			(47	)		—			(47	)
Gain on sale of investment		—			(162	)		—			(162	)
Cumulative change in accounting principle		—			—			—			(225	)
Decrease (increase) in:
Accounts receivable		(448	)		(227	)		(107	)		(378	)
Interest receivable		25			15			6			(21	)
Prepaid expenses		244			164			487			388
Other assets		(8	)		82			(99	)		(224	)
(Decrease) increase in:
Accounts payable		1,154			(554	)		(490	)		(1,240	)
Deferred revenue		570			172			849			396
Net cash provided by operating activities		8,542			3,658			13,850			5,398
Cash flows from investing activities:
Purchases of short-term investments, net		(2,079	)		—			(2,079	)		—
Repayments of note receivable		500			57			520			159
Advances under note receivable		(11	)		—			(22	)		—
Purchases of furniture, fixtures and equipment		(1,414	)		(751	)		(1,714	)		(1,297	)
Purchase of intangible asset		(200	)		—			(200	)		—
Acquisition of business, net of cash received		—			—			(175	)		—
Proceeds from sale of equipment		—			—			73			—
Proceeds from sale of an investment		—			169			—			169
Net cash used in investing activities		(3,204	)		(525	)		(3,597	)		(969	)
Cash flows from financing activities:
Exercise of stock options		592			486			1,849			486
Proceeds from common shares issued under ESPP		88			—			178			—
Repayments of long-term debt, net		(319	)		(352	)		(629	)		(559	)
Net cash provided by (used in) financing activities		361			134			1,398			(73	)
Net increase in cash		5,699			3,267			11,651			4,356
Cash and cash equivalents, beginning of period		38,729			20,176			32,777			19,087
Cash and cash equivalents, end of period	$	44,428		$	23,443		$	44,428		$	23,443

j2 Global Communications, Inc.
Unaudited Reconciliation of Free Cash Flow
(in thousands)

Free Cash Flow amounts are not meant as a substitute for GAAP, but are solely for informational purposes. The following table illustrates the adjustments and reconciles Free Cash Flow data to that reported in the financial statements.

	Three months ended						Six months ended
	June 30,						June 30,
	2003			2002			2003			2002
Net cash provided by operating activities	$	8,542		$	3,658		$	13,850		$	5,398
Deduct:
Purchases of furniture, fixtures and equipment		(1,414	)		(751	)		(1,714	)		(1,297	)
Free Cash Flow		7,128		$	2,907		$	12,136		$	4,101

(1) Free cash flow represents cash flow from operations calculated in accordance with generally accepted accounting principles (“GAAP”) after deducting capital expenditures. The Company believes that free cash flow is a useful measure of operating performance because it better reflects the resources generated that could be utilized for strategic opportunities including, among others, to invest in the business, make strategic acquisitions, strengthen the balance sheet and repurchase stock. Free Cash Flow is not determined in accordance with GAAP and should not be considered as an alternative to historical financial results presented in accordance with GAAP.