Prior to the AT&T breakup in 1984, AT&T held 89.8% of Pacific Telephone. After the breakup, The Pacific Telephone and Telegraph Company changed its name to Pacific Bell Telephone Company and was often referred to as PacBell.
In September 2001, SBC rebranded the telephone company "SBC Pacific Bell". In late 2002, the companies were rebranded again as simply "SBC". Meanwhile, employees of SBC working in California who support SBC's non-regulated services and/or services provided both within and outside California were transferred to other SBC subsidiaries, like "Pacific Telesis Shared Services" and "SBC Operations, Inc." However, for legal and regulatory purposes, employees supporting local regulated services were still employed by "Pacific Bell Telephone Company dba SBC California ("SBC California")" which is the SBC subsidiary that provides regulated local exchange carrier telephone services within the franchise territory in California.
| Pacific Telephone |
In 1969, AT&T revamped its corporate identity, resulting in a simplified Bell logo, absent of "Bell System". This logo remained with Pacific Telephone until 1983.
| Pacific Bell "A Pacific Telesis Company"|
In 1984, following the Bell System divestiture, Pacific Telephone's legal name changed to Pacific Bell Telephone Co., and it received a non-Bell logo.
| Pacific Bell|
In 1998, "A Pacific Telesis Company" was dropped following the acquisition by SBC Communications.
| SBC Global Network|
In 1999, After SBC acquired Ameritech. Shortly after in 2000, SBC began attaching "SBC Global Network" to the ends of its subsidiary logos, resulting in this logo.
| SBC Pacific Bell |
In 2001, SBC proceeded to "unify" its companies by adding the "SBC" corporate logo to the operating company logos, and began advertising Pacific Bell as "SBC Pacific Bell".
| SBC California |
SBC eventually dropped the names of all of its Bells in late 2002, and added the title "d/b/a SBC (name of state or region)" to the official names of its companies on January 1, 2003. Pacific Bell's d/b/a name becomes "SBC California". SBC, later AT&T, retained "SBC Pacific Bell" on cards on its payphones, in order to better separate its operating regions.
| AT&T California |
In 2005, SBC completed its acquisition of AT&T Corp., forming AT&T, Inc. AT&T changed the d/b/a names of its Bell Operating Companies on January 1, 2006, resulting in "AT&T California".