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  1. Southwestern Bell Telephone Company is a wholly owned subsidiary of AT&T. It does business as other d.b.a. names in its operating region, which includes Arkansas, Kansas, Missouri, Oklahoma, Texas, and portions of Illinois. The company is currently headquartered in Dallas, Texas at One AT&T Plaza . History.

  2. Learn how AT&T evolved from Alexander Graham Bell's invention of the telephone to a global leader in communications. See the brands and acquisitions that shaped AT&T, including Southwestern Bell, the former local telephone operator.

  3. In 1920 this company bought Southwestern Telephone & Telegraph and Southwestern Bell Telephone Company (Oklahoma), the successor to Pioneer Telephone & Telegraph, establishing the new Southwestern Bell Telephone Company, which was a subsidiary of AT & T.

  4. Find out how to manage your home phone plans, features, and issues with AT&T. Learn about star codes, call block, video library, community forums, and more.

  5. AT&T offers wireless and internet service plans, as well as phones, tablets, and smartwatches. Find out how to get iPhone 15, Samsung Galaxy S24+, Google Pixel 8a, and more for free or cheap.

  6. The breakup of the Bell System resulted in the creation of seven independent companies that were formed from the original twenty-two AT&T-controlled members of the System. On January 1, 1984, these companies were NYNEX, Pacific Telesis, Ameritech, Bell Atlantic, Southwestern Bell Corporation, BellSouth, and US West.

  7. Find company research, competitor information, contact details & financial data for Southwestern Bell Telephone Company of Oklahoma City, OK. Get the latest business insights from Dun & Bradstreet.