List of United States telephone companies

Regional Bell Operating Companies of the United States

• AT&T: Alabama, Alaska, Arkansas, California, Connecticut, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky, Louisiana, Michigan, Mississippi, Missouri, Nevada, North Carolina, Ohio, Oklahoma, South Carolina, Tennessee, Texas, Wisconsin

• Verizon: California, Connecticut(via New York), Delaware, District of Columbia, Florida, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Texas, Virginia, Washington

• CenturyLink: Arizona, Colorado, Idaho, Iowa, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, Wyoming

• Frontier West Virginia: West Virginia
  • Created in 2010 when Verizon sold all of its landlines in West Virginia to Frontier Communications.

• Northern New England Telephone Operations (d/b/a FairPoint): Maine, New Hampshire, Vermont
  • Created in 2008 when Verizon sold its landlines in the aforementioned states to FairPoint.

Other major Incumbent Local Exchange Carriers

In the following states and regions, the primary local carrier is not an RBOC:

• CenturyLink, in addition to its role as the RBOC in the areas gained from its acquisition of Qwest, CenturyLink serves mainly rural local exchanges in 33 states.
• Frontier, in addition to its role as the RBOC for West Virginia, now serves mainly rural areas in 23 other states.
• Windstream, founded in 2006 with the spinoff of Alltel's wireline division and simultaneous merger with Valor Telecom, serves mainly rural areas in 29 states.
• FairPoint, in addition to its role as the RBOC for northern New England, also serves rural areas in 15 other states.
• Claro Puerto Rico, which serves every exchange in Puerto Rico, has been owned by the international telecommunications giant América Móvil since in 2007.
• Cincinnati Bell, which serves the greater Cincinnati area, was not included in the Bell System divestiture of 1984 because the former AT&T held only a minority stake in that company.
• Hawaiian Telcom, originally part of GTE before its merger with Verizon; Verizon sold their Hawaiian assets to The Carlyle Group in 2005

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

Regional Telephone companies and VOIP providers by state

This is a list of telephone companies of the United States.

• Alabama - Center Link, Deltacom, Windstream, FairPoint Communications, Frontier Communications, Time Warner Cable, Charter, Bright House Networks, PAETEC, TDS Telecom, Matrix Business Technologies

• Alaska - Alascom, Alaska Power and Telephone Company, Anchorage Telephone Utility (ATU), General Communication, Matrix Business Technologies

• Arizona - Frontier Communications, Cox, PAETEC, TDS Telecom, Matrix Business Technologies

• Arkansas - CenturyLink, Windstream, Charter, Cox, TDS Telecom, Matrix Business Technologies

• California - Comcast, Verizon, Sonic.net, Blue Casa, PAETEC, Frontier Communications, Time Warner Cable, Charter, Pacific Telephone Company, Cox, Bright House Networks, TDS Telecom, Matrix Business Technologies, TelePacific Communications, TCAST Communications

• Colorado - Bresnan Communications, Comcast, CenturyLink, FairPoint Communications, PAETEC, TDS Telecom, Matrix Business Technologies

• Connecticut - Broadview Networks, Verizon, Comcast, PAETEC, Charter, Cox, Cablevision, Matrix Business Technologies

• Delaware - Broadview Networks, CloseCall America, Atlantic Broadband, Cavalier Telephone, Comcast, Matrix Business Technologies

• District of Columbia - Broadview Networks, Cavalier Telephone, RCN, PAETEC, Matrix Business Technologies

• Florida - Nettalk Inc USA Cavalier Telephone, Northlake TelecomCloseCall America, Access Integrated Networks, Verizon, Comcast, CenturyLink, Deltacom, FairPoint Communications, Windstream, Frontier Communications, Time Warner Cable, Cox, Bright House Networks, PAETEC, Atlantic Broadband, TDS Telecom, Matrix Business Technologies, Sling Broadband, Telovations

• Georgia - Cavalier Telephone, Cox, Comcast, Deltacom, Windstream, PAETEC, Frontier Communications, Charter, Cox, Hargray, TDS Telecom, Matrix Business Technologies

• Hawaii - Hawaiian Telcom, Pacific LightNet, phone.com, Sandwich Isles Communications, tw telecom, Time Warner Cable, Matrix Business Technologies

• Idaho - Verizon, Frontier Communications, Cox, TDS Telecom, Matrix Business Technologies

• Illinois - Cavalier Telephone, CloseCall America, Consolidated Communications, Verizon, Comcast, FairPoint Communications, Mediacom, RCN (Chicago Area), PAETEC, Frontier Communications, Charter, TDS Telecom, NewCore Wireless, Matrix Business Technologies

• Indiana - Zentality Communications, Comcast, Verizon, Cincinnati Bell, CloseCall America, Frontier Communications, Charter, Bright House Networks, PAETEC, TDS Telecom, Matrix Business Technologies, Insight Communications

• Iowa - PAETEC, Iowa Telecom, Windstream, Frontier Communications, Mediacom, Matrix Business Technologies, NewCore Wireless

• Kansas - CenturyLink, Rural Telephone, CloseCall America, Cox, FairPoint Communications, Matrix Business Technologies

• Kentucky - Access Integrated Networks, Verizon, AT&T, Brandenburg Telephone Company, Cincinnati Bell, Windstream, PAETEC, TDS Telecom, Matrix Business Technologies, Insight Communications

• Louisiana - Cavalier Telephone, Access Integrated Networks, CenturyLink, Deltacom, PAETEC, Time Warner Cable, Charter, Cox, Matrix Business Technologies

• Maine - Broadview Networks, CloseCall America, Fairpoint, Lincolnville Telephone Company, PAETEC, Time Warner Cable, TDS Telecom, Matrix Business Technologies

• Maryland - Broadview Networks, Comcast, Cavalier Telephone, CloseCall America, Armstrong, PAETEC, Atlantic Broadband, PanTerra Networks, RCN (Montgomery County), Matrix Business Technologies

• Massachusetts - Broadview Networks, DSCI Corp., Comcast, CloseCall America, RCN (Boston Area), PAETEC, Time Warner Cable, Charter, Matrix Business Technologies

• Michigan - Cavalier Telephone, CloseCall America, Verizon, TDS Metrocom, Westphalia Telephone Company, CenturyLink, Lennon Telephone Company, Frontier Communications, Charter, Bright House Networks, PAETEC, Matrix Business Technologies, TelNet Worldwide

• Minnesota - Comcast, CenturyLink, Frontier Communications, Charter, Midcontinent Communications, PAETEC, TDS Telecom, Matrix Business Technologies, NewCore Wireless, PanTerra Networks, Integra Telecom

• Mississippi - Cavalier Telephone, Deltacom, Windstream, Frontier Communications, Time Warner Cable, TDS Telecom, Matrix Business Technologies

• Missouri - Windstream, CenturyLink, KLM Telephone Company, Charter, FairPoint Communications, PAETEC, TDS Telecom, Matrix Business Technologies

• Montana - Optimum Voice, CenturyLink, Frontier Communications, Matrix Business Technologies

• Nebraska - Windstream, Frontier Communications, Charter, Cox, Midcontinent Communications, Matrix Business Technologies

• Nevada - Verizon, CenturyLink, Frontier Communications, CC Communications, Charter, Cox, Matrix Business Technologies, Telecom North America, TelePacific Communications

• New Hampshire - Broadview Networks, CloseCall America, Fairpoint Communications, Bretton Woods Telephone, Dixville Telephone Company, Dunbarton Telephone Company, Granite State Communications, TDS Telecom, PAETEC, Time Warner Cable, Matrix Business Technologies, Union Telephone Co, Northland Telephone Co

• New Jersey - Broadview Networks, Cavalier Telephone, CloseCall America, Covista Communications, CenturyLink, PAETEC, Time Warner Cable, Cablevision, Comcast, Service Electric, Matrix Business Technologies

• New Mexico - Windstream, Frontier Communications, Matrix Business Technologies

• New York - Broadview Networks, Cavalier Telephone, CloseCall America, Frontier Communications, Armstrong, FairPoint Communications, Windstream, PAETEC, Frontier Communications, Time Warner Cable, Cablevision, OVETEL Charter, Atlantic Broadband, TDS Telecom, RCN (Manhattan and Queens), Matrix Business Technologies, The Flat Planet Phone Company

• North Carolina - Cavalier Telephone, CenturyLink, Verizon, Deltacom, Windstream, PAETEC, Time Warner Cable, Charter, ATMC, TDS Telecom, Matrix Business Technologies, North State Communications

• North Dakota - Dickey Rural Communications, Bek Telephone, Consolidated Telephone, Midcontinent Communications, TDS Telecom, Matrix Business Technologies

• Ohio - BuckeyeTel, Cavalier Telephone, CloseCall America, Verizon, Cincinnati Bell, CenturyLink, Windstream, FairPoint Communications, Frontier Communications, Time Warner Cable, Cox, PAETEC, TDS Telecom, Matrix Business Technologies

• Oklahoma - Windstream, Time Warner Cable, Cox, FairPoint Communications, PAETEC, TDS Telecom, Matrix Business Technologies

• Oregon - Verizon, CenturyLink, Charter, Comcast, Frontier Communications, TDS Telecom, Matrix Business Technologies

• Pennsylvania - Cavalier Telephone, CloseCall America, Consolidated Communications, Comcast, CenturyLink, Armstrong, RCN (Eastern PA Area), South Canaan Telephone, Windstream, North-Eastern Pennsylvania Telephone Company, PAETEC, Frontier Communications, Time Warner Cable, Atlantic Broadband, Blue Ridge Communications, Cablevision, TDS Telecom, Service Electric, Matrix Business Technologies

• Rhode Island - Broadview Networks, CloseCall America, PAETEC, Cox, Matrix Business Technologies

• South Carolina - Atlantic Broadband, Verizon, Deltacom, Comporium, Genesis Telecommunications, Windstream, CenturyLink, Time Warner Cable, Charter, Hargray, PAETEC, TDS Telecom, Matrix Business Technologies, Waccamaw Telecommunications Systems, Inc.

• South Dakota - Santel Communications, Midcontinent Communications, Matrix Business Technologies

• Tennessee - Deltacom, CenturyLink, PAETEC, Frontier Communications, Charter, TDS Telecom, Comcast, Matrix Business Technologies

• Texas - Verizon, Comcast, CloseCall America, Grande Communications, CenturyLink, Windstream, ICBS, Time Warner Cable, Charter, Consolidated Communications, PAETEC, Matrix Business Technologies

• Utah - Bresnan Communications, Comcast, Frontier Communications, PAETEC, Matrix Business Technologies, UBTA-UBET

• Vermont -Broadview Networks, Fairpoint, Charter, TDS Telecom, Matrix Business Technologies

• Virginia - Cavalier Telephone, Cavalier Telephone CloseCall America, CenturyLink, Charter, Cox, FairPoint Communications, PAETEC, TDS Telecom, Comcast, RCN (Falls Church), Matrix Business Technologies, Bristol Virginia Utilities

• Washington - Verizon, CenturyLink, Comcast, Charter, FairPoint Communications, Whidbey Telecom, TDS Telecom, Matrix Business Technologies

• West Virginia - Armstrong, Atlantic Broadband, Frontier Communications, Time Warner Cable, Comcast, Matrix Business Technologies

• Wisconsin - CenturyLink, Verizon, CloseCall America, West Wisconsin Telcom, 24-7 Telcom, Tri-County Communications, Richland-Grant Telephone, Baldwin Telcom, Frontier Communications, TDS Telecom, Time Warner Cable, Charter, PAETEC, NewCore Wireless, Matrix Business Technologies

• Wyoming - Bresnan Communications, Cellular One, CenturyLink, Matrix Business Technologies, Silver Star Communications, UBTA-UBET, Union Telephone Company

See also

• Lists of public utilities