A telephone company is a kind of electronic communications service provider, more precisely a telecommunications service provider (TSP), that provides...

The Bell Telephone Company was the initial corporate entity from which the Bell System originated to build a continental conglomerate and monopoly in...

The Pacific Bell Telephone Company (Pac Bell) is a telephone company that provides telephone service in California. The company is owned by AT&T through...

The National Telephone Company (NTC) was a British telephone company from 1881 until 1911 which brought together smaller local companies in the early...

telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services...

Chesapeake and Potomac Telephone Company, usually known as C&P Telephone, is a former d/b/a name for four Bell Operating Companies providing service to...

former name, the American Telephone and Telegraph Company) is an American multinational telecommunications holding company headquartered at Whitacre Tower...

An independent telephone company was a telephone company providing local service in the United States or Canada that was not part of the Bell System organized...

Standardization (ISO). Note: Numbers of total revenues of most telephone operating companies are sourced from Forbes or MarketScreener. When $USD revenues...

This is a list of United States telephone companies. The Regional Bell Operating Companies (RBOCs) are the result of the break-up of the Bell System in...