Ameritech

==1983–1993==
SBC Ameritech was established as Ameritech in 1983 as a spinoff of AT&T, with the Bell logo carried over.
==1993–2003==
Following Ameritech's merger with SBC Communications in 1999, this logo was often used in association with the "SBC Global Network" logo:
==2002–2003==
Category:AT&T
Category:Telecommunications
Category:United States
Category:1983
Category:Chicago
Category:Illinois