Fixed-line telecommunications
AT&T
Mobile telecommunications:
United States: AT&T Mobility | AT&T Prepaid | Cricket Wireless
Mexico: AT&T | Unefon
Other properties
AT&T ActiveArmor | AT&T Device Help | AT&T Originals | AT&T Personal Cloud | AT&T Secure Family | AT&T Smart Home Manager | AT&T Smart Wi-Fi | AT&T Sign in Helper | AT&T Stadium | AT&T U-verse | AT&T Visual Voicemail | AT&T Voicemail Viewer | MyAT&T
Precedessor companies
Bell Telephone Company | AT&T Corporation | Western Electric
Former/defunct assets
Advanced Mobile Phone Service | Aio Wireless | Americast | Ameritech | AT&T Broadband | AT&T Canada | AT&T Center | AT&T Digital Life | AT&T DriveMode | AT&T Information Systems | AT&T Locker | AT&T Wireless Services | Bell Atlantic | Bell Canada | Bell Labs | BellSouth | Cingular Wireless | DirecTV1 | Illinois Bell | Liberty Media | Lionsgate (2%) | Lucent Technologies | MediaOne | NCR Corporation | NYNEX | Pacific Bell | Pacific Northwest Bell | Pacific Telesis | Paradyne | RCA | Sky México2 | South Central Bell | Southern Bell | Tele-Communications Inc. | US West | Vrio3 | WarnerMedia | Xandr
1 Sold to TPG Capital
2 Joint-venture with Televisa
3 Sold to Grupo Werthein
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