Property, Plant and Equipment

9 Months Ended

Sep. 30, 2025

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Note 6—Property, Plant and Equipment

Net property, plant and equipment is composed of the following:

	Depreciable Lives	September 30, 2025		December 31, 2024
		(Dollars in millions)
Land	N/A	$	328	329
Fiber, conduit and other outside plant(1)	15-45 years	7,300		8,246
Central office and other network electronics(2)	7-10 years	5,506		5,792
Support assets(3)	3-30 years	2,869		2,878
Construction in progress(4)	N/A	298		530
Gross property, plant and equipment		16,301		17,775
Accumulated depreciation		(8,789)		(8,910)
Net property, plant and equipment		$	7,512	8,865

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(1)Fiber, conduit and other outside plant consists of fiber and metallic cable, conduit, poles, and other supporting structures.

(2)Central office and other network electronics consists of circuit and packet switches, routers, transmission electronics, and electronics providing service to customers.

(3)Support assets consist of buildings, computers, and other administrative and support equipment.

(4)Construction in progress includes inventory held for construction and property of the aforementioned categories that has not been placed in service as it is still under construction.

As of September 30, 2025, we classified certain property, plant and equipment, net as held for sale and discontinued recording depreciation on the disposal group. See Note 2—Planned Divestiture of the Lumen Mass Markets Fiber-to-the-Home Business.

We recorded depreciation expense of $154 million and $502 million, respectively, for the three and nine months ended September 30, 2025 and $179 million and $528 million, respectively, for the three and nine months ended September 30, 2024.