Reincorporation
On December 30, 2001, the original Southwestern Bell Telephone Company, incorporated in Missouri, ceased to exist when it was merged into Southwestern Bell Texas, Inc., a separate operating company incorporated in Texas.[5] Southwestern Bell Texas then converted itself into a limited partnership and renamed itself Southwestern Bell Telephone, L.P., incorporated in Texas.[6] This company ceased to exist on June 29, 2007, when it was merged into SWBT Inc., incorporated in Missouri,[7] which was founded just 8 days prior. At that point, SWBT Inc. took the formerly dormant name Southwestern Bell Telephone Company and Southwestern Bell again became a resident company in Missouri.
In 2012, Southwestern Bell relocated its state of incorporation from Missouri to Delaware.[8]
Branding
From its name change in 1917 until 2001, SWBT was simply branded as Southwestern Bell. Starting in 1999, SBC Communications began branding its operating companies as part of the "SBC Global Network," with the name enclosed in a circle with the Pacific Telesis "access" mark to the logos of its divisions (Ameritech, Nevada Bell, Pacific Bell, SNET, Southwestern Bell).
In 2000, the Bell logo was dropped from the mark of Southwestern Bell.
In 2001, SBC standardized its operating company branding logos, and placed the SBC corporate logo toward the northwest of the name "Southwestern Bell", and the branding for SWBT became SBC Southwestern Bell.
The Southwestern Bell brand vanished in late 2002 when SBC dropped the names of all its operating companies to use "SBC" as a national brand. Since d.b.a. names were not approved before publishing deadlines for telephone directories distributed in December 2002 and January 2003, the Southwestern Bell Telephone Co. name remained on telephone directories issued in December 2002 and January 2003.
From late 2002 to 2005, Southwestern Bell conducted business under the following names: SBC Arkansas, SBC Kansas, SBC Missouri, SBC Oklahoma, SBC Southwest, and SBC Texas.
SBC Communications bought AT&T Corp. on November 18, 2005, and changed its name to AT&T Inc. Shortly afterwards, on January 15, 2006, AT&T companies were given new d.b.a names. As a result, officially, Southwestern Bell began conducting business under the following names: AT&T Arkansas, AT&T Kansas, AT&T Missouri, AT&T Oklahoma, and AT&T Texas. The regional d.b.a. name is now AT&T Southwest. The legal name remains Southwestern Bell Telephone Company.