Template:AT&T Spinoffs

First generation

1929	Graybar Electric Company
1956	Northern Electric (via Western Electric)
1975	Bell Canada
1984 Divestiture	Ameritech Bell Atlantic Bell Communications Research BellSouth NYNEX Pacific Telesis Southwestern Bell Corporation US West
1991–1993	Unix System Laboratories
1996	Lucent Technologies NCR
1997	AT&T Submarine Systems sold to Tyco International
2001	AT&T Wireless Services
2003	AT&T Broadband

Second generation spinoffs

Lucent Technologies	Advanced American Telephones (2000) Avaya (2000) QLT Consumer Lease Services (2000) Agere Systems (2002)
MediaOne Group (f/k/a US West)	U S WEST (1998)
NCR	Teradata (2007)
Pacific Telesis	AirTouch (1994)
Qwest	Dex Media (2002)
Regional Bells	Telcordia Technologies (1997)
SBC Communications / AT&T	R.H. Donnelley Publishing and Advertising of Illinois (2004) YP Holdings (2012) Southern New England Telephone (2014)
Verizon Communications	Hawaiian Telcom (2005) Idearc (2006) Northern New England Telephone Operations (2008) New Communications Holdings (2010) Frontier California Frontier Florida Frontier Southwest (2014)