List of United States telephone companies


This is a list of United States telephone companies.

Regional Bell Operating Companies

The seven Regional Bell Operating Companies were created as the result of the break-up of the Bell System in 1984. After numerous mergers, divestments, and rebrandings since the break-up, these are the current successor RBOCs:
Altafiber, formerly known as Cincinnati Bell, serves ex-Bell exchanges in the Cincinnati metropolitan area. It was not transferred to an RBOC in the Bell System breakup because the original AT&T held only a minority stake in the company.

Other local exchange carrier areas

RBOCs that, through mergers and acquisitions, also serve as local exchange carriers in areas that were not covered by the Bell System include:
  • Verizon, in addition to the ex-Bell exchanges it has retained, serves former GTE areas in Pennsylvania and Virginia, and areas in 27 other states, including parts of Alabama, Arizona, California, Florida, Georgia, Illinois, Indiana, Iowa, Michigan, Minnesota, Mississippi, Nebraska, Nevada, New Mexico, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Texas, Utah, and Wisconsin which were acquired via their purchase of Frontier Communications, many of which were former GTE areas Frontier had previously bought from Verizon.
  • Lumen Technologies, in addition to the ex-Bell exchanges in 14 states gained from its acquisition of Qwest, serves other non-ex-Bell local exchanges in those states, as well as some in Florida and the Las Vegas metropolitan area in Nevada.
  • Consolidated Communications, in addition to its ex-Bell exchanges in Northern New England, also serves rural areas in 22 states.
  • Altafiber, in addition to its ex-Bell exchanges in the Cincinnati area, operates exchanges in Hawaii via its ownership of Hawaiian Telcom.

Non-Bell exchange carriers

Many other individual communities or smaller regions are also served by non-RBOC companies.