Supplementary Balance Sheet Information (in thousands):



	June 30, 2011			December 31, 2010

Other current assets:
Accounts receivable, net(1)	$	59,321		$	50,750
Prepaid expenses	40,258			27,493
Other	38,393			12,767
	$	137,972		$	91,010
Property and equipment, net:
Network equipment	$	3,160,211		$	3,095,793
Computer hardware and software	487,087			342,972
Construction-in-progress	72,018			146,973
Other	115,218			108,273
	3,834,534			3,694,011
Accumulated depreciation	(1,858,140		)	(1,657,366		)
	$	1,976,394		$	2,036,645
Intangible assets, net:
Customer relationships	$	57,782		$	57,782
Trademarks	37,000			37,000
	94,782			94,782
Accumulated amortization of customer relationships	(24,187		)	(12,980		)
Accumulated amortization of trademarks	(18,280		)	(16,959		)
	$	52,315		$	64,843
Accounts payable and accrued liabilities:
Trade accounts payable	$	152,569		$	205,824
Accrued payroll and related benefits	56,464			55,290
Other accrued liabilities	99,679			85,755
	$	308,712		$	346,869
Other current liabilities:
Deferred service revenue(2)	$	106,400		$	101,343
Deferred equipment revenue(3)	30,601			26,564
Accrued sales, telecommunications, property and other taxes payable	31,340			44,942
Accrued interest	56,006			40,804
Other	9,442			7,424
	$	233,789		$	221,077

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(1)	Accounts receivable, net, consists primarily of amounts billed to third-party dealers for devices and accessories and amounts due from service providers related to interconnect and roaming agreements, net of an allowance for doubtful accounts.


(2)	Deferred service revenue consists primarily of cash received from customers in advance of their service period.


(3)	Deferred equipment revenue relates to devices sold to third-party dealers which have not yet been purchased and activated by customers.