AT&T - Corporate Structure

Corporate Structure

AT&T Inc. has retained the holding companies it has acquired over the years resulting in the following corporate structure:

• AT&T Inc., publicly traded holding company
  • Southwestern Bell Telephone Company d/b/a AT&T Arkansas, AT&T Kansas, AT&T Missouri, AT&T Oklahoma, AT&T Southwest, AT&T Texas
  • AT&T Teleholdings, Inc. d/b/a AT&T East, AT&T Midwest, AT&T West; formerly Ameritech, acquired in 1999; absorbed Pacific Telesis and SNET Corp. under AT&T ownership
    • Illinois Bell Telephone Company d/b/a AT&T Illinois
    • Indiana Bell Telephone Company d/b/a AT&T Indiana
    • Michigan Bell Telephone Company d/b/a AT&T Michigan
    • The Ohio Bell Telephone Company d/b/a AT&T Ohio
    • Pacific Bell Telephone Company d/b/a AT&T California
      • Nevada Bell Telephone Company d/b/a AT&T Nevada
    • The Southern New England Telephone Company d/b/a AT&T Connecticut (includes former Woodbury Telephone)
    • Wisconsin Bell, Inc. d/b/a AT&T Wisconsin
  • AT&T Corp., acquired 2005
    • AT&T Alascom
  • BellSouth Corporation d/b/a AT&T South, acquired 2006
    • BellSouth Telecommunications, LLC d/b/a AT&T Alabama, AT&T Florida, AT&T Georgia, AT&T Louisiana, AT&T Kentucky, AT&T Mississippi, AT&T North Carolina, AT&T South Carolina, AT&T Southeast, AT&T Tennessee
  • AT&T Mobility