Property, Plant and Equipment (Table)

12 Months Ended

Dec. 31, 2012

December 31,	Useful Lives (Years)	2012		2011
(Dollars in thousands)
Land	N/A	$	33,947	$	30,807
Buildings	20		341,852		330,925
Leasehold and land improvements	1-30		1,188,720		1,129,818
Cell site equipment	6-25		3,100,916		2,874,397
Switching equipment	1-8		1,155,114		1,113,780
Office furniture and equipment	3-5		535,656		570,776
Other operating assets and equipment	5-25		128,290		127,253
System development	3-7		631,184		545,193
Work in process	N/A		362,749		285,500
			7,478,428		7,008,449
Accumulated depreciation and amortization			(4,455,840)		(4,218,147)
		$	3,022,588	$	2,790,302

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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