GTE Corporation, formerly General Telephone & Electronics Corporation (1955–1982), was the largest independent telephone company in the United States during the days of the Bell System. The company operated from 1926, with roots tracing further back than that, until 2000, when it was acquired by Bell Atlantic; the combined company took the name Verizon.
AT&T Teleholdings, Inc., formerly known as Ameritech Corporation, is an American telecommunications company that arose out of the 1984 AT&T divestiture. Ameritech was one of the seven Regional Bell Operating Companies that was created following the breakup of the Bell System. Ameritech was acquired by SBC Communications in 1999 which subsequently acquired AT&T Corporation in 2006, becoming the present-day AT&T Inc.
Cincinnati Bell is the dominant telephone company for Cincinnati, Ohio, its nearby suburbs, and the Dayton metropolitan area in the U.S. states of Ohio, Indiana and Kentucky. Through the holdings of its parent company Cincinnati Bell Inc. it is also the dominant provider for the State of Hawaii. Its incumbent local exchange carrier subsidiary uses the name Cincinnati Bell Telephone Company LLC. Other subsidiaries handle services such as IT Solutions and long distance calling.
Ameritech Mobile Communications, LLC was the first company in the United States to provide cellular mobile phone service to the general public. Cell service became publicly available in Chicago on October 13, 1983. The company was a division of Ameritech which, as of January 1, 1984, was the holding company of Illinois Bell, Michigan Bell, Wisconsin Bell, Ohio Bell, and Indiana Bell, which provides landline service to the Great Lakes region. From around 1986, Cincinnati Bell held a 45% stake in the company. Originally named Ameritech Mobile Communications, it later became known as Ameritech Cellular.
Wisconsin Bell, Inc. is the name of the Bell Operating Company serving Wisconsin. It is owned by AT&T through AT&T Teleholdings, originally known as Ameritech.
YP Western Directory LLC, formerly Pacific Bell Directory, was the advertising and publishing division of the Pacific Telesis Group. PBD Holdings held Pacific Bell Directory under its umbrella, who published directories in both Nevada and California.
YP Texas Region Yellow Pages LLC is a division of YP Holdings that publishes telephone directories to Southwestern Bell customers for AT&T.
SBC Long Distance LLC is a long distance telephone company owned by AT&T that does business as AT&T Long Distance. SBC Long Distance competes with other long distance providers who provide service within some of the Bell Operating Company service boundaries of AT&T. SBC Long Distance is a separate subsidiary than AT&T Communications, the incumbent long distance carrier for most of the country acquired in the SBC merger with AT&T.
Dex One Corporation was an American marketing company providing online, mobile and print search marketing via their DexKnows.com website, print yellow pages directories and pay-per-click ad networks in the U.S.
YP Southeast Advertising & Publishing LLC, originally BellSouth Advertising & Publishing Corporation, or "BAPCO", publishes telephone directories for AT&T customers served by BellSouth Telecommunications. It is a wholly owned subsidiary of AT&T.
YP Connecticut Information Services LLC, originally SNET Information Services, Inc., was the directory publishing arm of Southern New England Telecommunications. It is currently owned by YP Holdings and publishes telephone directories for Southern New England Telephone customers under the YP Real Yellow Pages name.
Richard C. Notebaert is the former Chairman and CEO of Qwest, Tellabs and Ameritech. He was credited for saving Qwest from bankruptcy, and making Ameritech the most successful "Baby Bell".
Ameritech Interactive Media Services, Inc. was a subsidiary of AT&T that provides AT&T Yahoo!-branded Internet services to AT&T customers in Illinois, Indiana, Michigan, Ohio, and Wisconsin.
The Bell System was the system of companies, led by the Bell Telephone Company and later by AT&T, which provided telephone services to much of the United States and Canada from 1877 to 1984, at various times as a monopoly. On December 31, 1983, the system was divided into independent companies by a U.S. Justice Department mandate.
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.
CenturyTel of the Midwest-Kendall, LLC is one of the CenturyLink operating companies in Wisconsin. The company's cities include Peshtigo, Kendall, and Marinette.
