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

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

Delaware (State of incorporation)

23-2827736 (I.R.S. Employer Identification No.)

12020 Sunrise Valley Drive, Suite 250, Reston, Virginia (Address of principal executive offices)

20191 (Zip Code)

	Page
PART I - FINANCIAL INFORMATION
Item 1. Consolidated Financial Statements
Consolidated Statements of Operations - Three and Six Months Ended June 30, 2004 and 2003 (unaudited)	2
Consolidated Balance Sheets – June 30, 2004 and December 31, 2003 (unaudited)	3
Consolidated Statements of Stockholders' Equity - Six Months Ended June 30, 2004 (unaudited)	4
Consolidated Statements of Cash Flows – Three and Six Months Ended June 30, 2004 and 2003 (unaudited)	5
Notes to Consolidated Financial Statements (unaudited)	6
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	10
Item 3. Quantitative and Qualitative Disclosure About Market Risk	18
Item 4. Controls and Procedures	19
PART II - OTHER INFORMATION
Item 4. Submission of Matters to a Vote of Security Holders	19
Item 6. Exhibits and Reports on Form 8-K	19
(a) Exhibits
(b) Reports on Form 8-K

	1

		Three Months Ended June 30,						Six Months Ended June 30,
			2004			2003			2004			2003
Revenue		$	114,881		$	93,748		$	224,202		$	181,591
Costs and expenses:
Network and line costs, excluding depreciation and amortization (see below)			55,586			43,268			109,806			87,152
General and administrative expenses			15,891			12,549			31,053			25,428
Provision for doubtful accounts			4,905			2,895			8,326			5,117
Sales and marketing expenses			19,204			11,629			36,488			21,000
Depreciation and amortization			5,322			4,380			10,453			8,688
Total costs and expenses			100,908			74,721			196,126			147,385
Operating income			13,973			19,027			28,076			34,206
Other income (expense):
Interest income			42			186			143			295
Interest expense			(442	)		(2,027	)		(1,259	)		(4,506	)
Other income, net			--			314			--			2,465
Income before provision for income taxes			13,573			17,500			26,960			32,460
Provision for income taxes			5,025			6,825			10,056			12,659
Net income		$	8,548		$	10,675		$	16,904		$	19,801
Income per share – Basic:
Net income per share		$	0.32		$	0.41		$	0.63		$	0.75
Weighted average common shares outstanding			26,746			26,226			26,710			26,300
Income per share – Diluted:
Net income per share		$	0.30		$	0.37		$	0.59		$	0.69
Weighted average common and common equivalent shares outstanding			28,694			29,562			28,787			29,345

	2

		June 30, 2004			December 31, 2003
Assets
Current assets:
Cash and cash equivalents		$	30,427		$	35,242
Accounts receivable, trade (net of allowance for uncollectible accounts of $12,227 and $9,414 at June 30, 2004 and December 31, 2003, respectively)			48,109			40,321
Deferred income taxes			26,338			24,605
Prepaid expenses and other current assets			7,476			5,427
Total current assets			112,350			105,595
Property and equipment, net			66,016			68,069
Goodwill			19,503			19,503
Intangibles, net			3,244			4,666
Deferred income taxes			30,619			40,543
Other assets			8,264			7,547
		$	239,996		$	245,923
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable		$	43,039		$	35,296
Sales, use and excise taxes			14,926			14,551
Deferred revenue			14,516			10,873
Current portion of long-term debt			17,554			16,806
Accrued compensation			4,941			9,888
Other current liabilities			4,188			7,027
Total current liabilities			99,164			94,441
Long-term debt			2,985			31,791
Deferred income taxes			19,840			19,904
Commitments and contingencies
Stockholders' equity:
Preferred stock - $.01 par value, 5,000,000 shares authorized; no shares outstanding			--			--
Common stock - $.01 par value, 100,000,000 shares authorized; 26,966,743 and 26,662,952 issued and outstanding at June 30, 2004 and December 31, 2003, respectively			283			280
Additional paid-in capital			356,160			354,847
Accumulated deficit			(233,436	)		(250,340	)
Treasury stock - $.01 par value, 1,315,789 shares at June 30,2004 and December 31, 2003, respectively			(5,000	)		(5,000	)
Total stockholders' equity			118,007			99,787
		$	239,996		$	245,923

	3

		Common Stock				Treasury Stock
		Shares	Amount	Additional Paid-In Capital	Accumulated Deficit	Shares	Amount	Total
Balance, December 31, 2003		27,979	$280	$354,847	$(250,340)	1,316	$(5,000)	$99,787
Net income		--	--	--	16,904	--	--	16,904
Income tax benefit related to exercise of common stock options		--	--	757	--	--	--	757
Change in terms of employee stock options		--	--	9	--	--	--	9
Exercise of common stock options		304	3	547	--	--	--	550
Balance, June 30, 2004		28,283	$283	$356,160