Property, plant and equipment is summarized as follows at December 31:
Lives (years)
20252024
Land-$1,370 $1,372 
Buildings and improvements
2-44
40,674 39,947 
Central office equipment1
3-10
87,496 101,607 
Cable, wiring and conduit
15-50
101,530 95,217 
Other equipment
3-20
90,853 87,656 
Software
3-7
17,942 17,663 
Under construction-7,705 7,452 
347,570 350,914 
Accumulated depreciation and amortization216,011 222,043 
Property, plant and equipment – net$131,559 $128,871 
1 Includes certain network software.

Historical Timeline

Fiscal YearFiled
2025Feb 9, 2026Showing above
2024Feb 12, 2025
2023Feb 23, 2024
2022Feb 13, 2023
2021Feb 16, 2022
2020Feb 25, 2021
2019Feb 20, 2020
2018Feb 20, 2019
2017Feb 20, 2018
2016Feb 17, 2017
2015Feb 18, 2016

About PP&E Disclosures

The PP&E disclosure details a company's physical asset base — land, buildings, machinery, and equipment — along with the depreciation methods and useful life assumptions that determine how these costs flow through the income statement. Capitalization policy thresholds reveal management's judgment on the boundary between expense and asset, directly affecting both reported earnings and asset values.

Key signals: changes in estimated useful lives or depreciation methods can materially shift reported earnings without any operational change. Compare capital expenditures against depreciation expense — when capex consistently trails depreciation, the asset base may be aging and underinvested. Watch for large asset impairments or write-downs that signal overvalued carrying amounts. Asset retirement obligations reveal future environmental or decommissioning costs that are often underappreciated. Compare PP&E intensity (PP&E-to-revenue) against industry peers to assess capital efficiency and competitive positioning.