v3.26.3
Wireless Licenses, Goodwill and Other Intangible Assets (Tables)
 9 Months Ended
Sep. 30, 2026
Intangible Asset, Goodwill and Other [Abstract]  
Carrying Amount of Wireless Licenses
The carrying amounts of Wireless licenses are as follows:
At September 30,At December 31,
(dollars in millions)20262025
Wireless licenses$161,417 $157,039 
Changes in Carrying Amount of Goodwill
Changes in the carrying amount of Goodwill are as follows:
(dollars in millions)ConsumerBusinessTotal
Balance at January 1, 2026(1)
$21,177 $1,664 $22,841 
Acquisitions(2)
6,080 1,808 7,888 
Balance at September 30, 2026(1)
$27,257 $3,472 $30,729 
(1) Goodwill is net of accumulated impairment charges of $5.8 billion related to our Business reporting unit.
(2) Changes in goodwill due to acquisitions are related to Frontier and another immaterial transaction. See Note 3 for additional information.
Composition of Other Intangible Assets, Net
The following table displays the composition of Other intangible assets, net as well as the respective amortization periods:
At September 30, 2026At December 31, 2025
(dollars in millions)
Gross
Amount(1)
Accumulated
Amortization		Net
Amount		Gross
Amount		Accumulated
Amortization		Net
Amount
Customer lists (2 to 13 years)
$7,034 $(3,651)$3,383 $4,243 $(3,116)$1,127 
Non-network internal-use software (3 to 7 years)
28,886 (21,040)7,846 28,749 (20,301)8,448 
Other (3 to 25 years)
2,732 (1,959)773 2,676 (1,793)883 
Total$38,652 $(26,650)$12,002 $35,668 $(25,210)$10,458 
(1) Other intangible assets include assets acquired as a result of the Frontier acquisition. See Note 3 for additional information.
Amortization Expense for Other Intangible Assets
The amortization expense for Other intangible assets was as follows: 
Three Months EndedNine Months Ended
(dollars in millions)September 30,September 30,
2026$902 $2,615 
2025749 2,237 
Estimated Future Amortization Expense for Other Intangible Assets
The estimated future amortization expense for Other intangible assets for the remainder of the current year and next 5 years is as follows:

Years(dollars in millions)
Remainder of 2026$844 
20273,013 
20282,442 
20291,599 
20301,335 
2031975