List of United States telephone companies

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Regional Bell Operating Companies of the United States[edit]

  • AT&T Inc.: Alabama, Arkansas, California, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky, Louisiana, Michigan, Mississippi, Missouri, Nevada, North Carolina, Ohio, Oklahoma, South Carolina, Tennessee, Texas, Wisconsin
  • Verizon: Connecticut, Delaware, District of Columbia, Maryland, Massachusetts, New Jersey, New York, Pennsylvania, Rhode Island, Virginia
  • CenturyLink: Arizona, Colorado, Idaho, Iowa, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, Wyoming
  • Frontier Communications: West Virginia
    • Became a RBOC in 2010 when it purchased landlines in West Virginia from Verizon
    • In 2013 purchased landlines in Connecticut from AT&T
Remaining RBOC map

Other major Incumbent Local Exchange Carriers[edit]

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

  • AT&T Inc. in Connecticut, prior to the 2013 sale of those landlines to Frontier, was technically not considered a RBOC as SNET was a minority holding of the original AT&T and exempt from the 1984 Bell System divestiture
  • 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 Communications, in addition to its role as the RBOC for West Virginia, now serves mainly rural areas in 23 other states. It also purchased AT&T's landline business in Connecticut in 2013.
  • 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 access lines in Maine, New Hampshire, and Vermont, in 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
  • Verizon, in addition to its role as a RBOC in its areas retained in the East, serves former GTE areas in California, Florida, Pennsylvania, Texas, and Virginia.

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

Regional Telephone companies and VOIP providers by state[edit]

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

State Regional Bell Operating Company (RBOC)[1] Other Telephone Companies
Alabama AT&T, CenturyLink[2] Birch, Deltacom, Windstream, Fairpoint, Frontier Communications, Time Warner Cable, Charter, Bright House Networks, TDS Telecom, Matrix
Alaska AT&T, CenturyLink Alascom, Alaska Power and Telephone Company, Anchorage Telephone Utility (ATU), General Communication, Matrix, Cordova Telephone Cooperative
Arizona AT&T, CenturyLink Cox, Frontier Communications, Matrix, Nextiva, Windstream, TDS Telecom
Arkansas AT&T, CenturyLink Birch, Sage Telecom, Windstream, Charter, Cox, TDS Telecom, Matrix, Level 3 communications
California AT&T, CenturyLink, Verizon Birch, Comcast, Sage Telecom, Sonic.net, Blue Casa, Windstream, Frontier Communications, Time Warner Cable, Charter, Pacific Telephone Company, Cox, Bright House Networks, TDS Telecom, Matrix, TelePacific Communications, TCAST Communications
Colorado CenturyLink Bresnan Communications, Comcast, FairPoint, Windstream, TDS Telecom, Matrix
Connecticut CenturyLink, Frontier (formerly AT&T)[3] Broadview Networks, Sage Telecom, Comcast, Windstream, Charter, Cox, Cablevision, Matrix, LinkUP Broadband
Delaware CenturyLink, Verizon Birch, Broadview Networks, CloseCall America, Atlantic Broadband, Cavalier Telephone, Comcast, Matrix
District of Columbia AT&T, CenturyLink, Verizon Broadview Networks, Cavalier, RCN, Windstream, Matrix
Florida AT&T, CenturyLink, Verizon Birch, VoiceOnyx Business Phone Service, Nettalk Inc. USA, Cavalier, Northlake Telecom, CloseCall America, Access Integrated Networks, Comcast, Deltacom, Engage Communications, Fairpoint, Windstream, Frontier Communications, Time Warner Cable, Cox, Bright House Networks, Atlantic Broadband, TDS Telecom, Matrix, Sling Broadband, Telovations, Star2Star Communications
Georgia AT&T, CenturyLink Birch, Cavalier, Cox, Comcast, Deltacom, Windstream, Frontier Communications, Charter, Cox, Hargray, TDS Telecom, Matrix
Hawaii AT&T, CenturyLink Hawaiian Telcom, Pacific LightNet, phone.com, Sandwich Isles Communications, tw telecom, Time Warner Cable, Matrix
Idaho AT&T, CenturyLink Frontier Communications, Cox, TDS Telecom, Matrix
Illinois AT&T, CenturyLink, Verizon Birch, Cavalier, Sage Telecom, CloseCall America, Consolidated Communications, Comcast, Fairpoint, Mediacom, RCN (Chicago Area), Windstream, Frontier Communications, Charter, TDS Telecom, NewCore Wireless, Matrix
Indiana AT&T, CenturyLink, Verizon Birch, Zentality Communications, Sage Telecom, Comcast, Cincinnati Bell, CloseCall America, Frontier Communications, Charter, Bright House Networks, Windstream, TDS Telecom, Matrix, Insight Communications
Iowa CenturyLink Birch, Iowa Telecom, Windstream, Frontier Communications, Mediacom, Matrix, NewCore Wireless
Kansas CenturyLink Birch, Sage Telecom, Rural Telephone, CloseCall America, Cox, Fairpoint, Matrix
Kentucky AT&T, CenturyLink, Verizon Birch, Brandenburg Telephone Company, Cincinnati Bell, Windstream, TDS Telecom, Matrix, Insight Communications
Louisiana CenturyLink Birch, Cavalier, Access Integrated Networks, Deltacom, Windstream, Time Warner Cable, Charter, Cox, Matrix
Maine FairPort (formerly Verizon) Broadview Networks, Comcast, CloseCall America, FairPoint, Lincolnville Telephone Company, Windstream, Time Warner Cable, TDS Telecom, Matrix
Maryland CenturyLink, Verizon Birch, Broadview Networks, Comcast, Cavalier, CloseCall America, Armstrong, Windstream, Atlantic Broadband, PanTerra Networks, RCN (Montgomery County), Matrix
Massachusetts CenturyLink, Verizon Birch, Broadview Networks, DSCI Corp., Comcast, CloseCall America, RCN (Boston Area), Windstream, Time Warner Cable, Charter, Matrix
Michigan CenturyLink, Verizon Birch, 123Net, Sage Telecom, Cavalier, CloseCall America, TDS Metrocom, Westphalia Telephone Company, Lennon Telephone Company, MichTel, Frontier Communications, Charter, Bright House Networks, Windstream, Matrix, TelNet Worldwide
Minnesota CenturyLink Birch, Comcast, Sage Telecom, Frontier Communications, Charter, Midcontinent Communications, Windstream, TDS Telecom, Matrix, NewCore Wireless, PanTerra Networks, Integra Telecom, Mediacom
Mississippi AT&T, CenturyLink Birch, Cavalier, Comcast, Deltacom, Windstream, Frontier Communications, MegaGate Broadband, Time Warner Cable, TDS Telecom, Matrix
Missouri AT&T, CenturyLink Birch, Windstream, Sage Telecom, KLM Telephone Company, Charter, FairPoint, TDS Telecom, Matrix
Montana CenturyLink Birch, Optimum Voice, Frontier Communications, Matrix
Nebraska AT&T, CenturyLink Birch, Windstream, Frontier Communications, Charter, Cox, Midcontinent Communications, Matrix
Nevada AT&T, CenturyLink, Verizon Frontier Communications, CC Communications, Charter, Cox, Matrix, Telecom North America, TelePacific Communications
New Hampshire CenturyLink, FairPoint (formerly Verizon) Broadview Networks, CloseCall America, Fairpoint, Bretton Woods Telephone, Dixville Telephone Company, Dunbarton Telephone Company, Granite State Communications, TDS Telecom, Windstream, Time Warner Cable, Matrix, Union Telephone Co, Northland Telephone Co[4]
New Jersey CenturyLink, Verizon Birch, Broadview Networks, Cavalier, CloseCall America, Covista Communications, Windstream, Time Warner Cable, Cablevision, Comcast, Service Electric, Matrix
New Mexico CenturyLink Birch, Windstream, Frontier Communications, Matrix
New York CenturyLink, Verizon Birch, Broadview Networks, Cavalier, CloseCall America, Pure Minutes Mobile, Frontier Communications, Armstrong, Fairpoint, Windstream, Frontier Communications, Time Warner Cable, Cablevision, OVETEL Charter, Atlantic Broadband, TDS Telecom, RCN (Manhattan and Queens), Matrix, The Flat Planet Phone Company
North Carolina CenturyLink, Verizon Birch, Carolina Digital Phone Cavalier, Deltacom, Windstream, Time Warner Cable, Charter, ATMC, TDS Telecom, Matrix, North State Communications
North Dakota CenturyLink Birch, Dickey Rural Communications, Bek Telephone, Consolidated Telephone, Midcontinent Communications, TDS Telecom, Matrix
Ohio AT&T, CenturyLink, Verizon Birch, BuckeyeTel, Sage Telecom, Cavalier, CloseCall America, Cincinnati Bell, Windstream, Fairpoint, Frontier Communications, Time Warner Cable, Cox, TDS Telecom, Matrix, Horizon Telcom, Inc., Wide Open West (WOW!)]
Oklahoma AT&T, CenturyLink Birch, Windstream, Sage Telecom, Time Warner Cable, Cox, Fairpoint, TDS Telecom, Matrix
Oregon CenturyLink, Verizon Birch, Charter, Comcast, Frontier Communications, TDS Telecom, Matrix, TRUSTID
Pennsylvania CenturyLink, Verizon Birch, Cavalier, Citizens Telephone Company of Kecksburg, CloseCall America, Consolidated Communications, Comcast, Armstrong, RCN (Eastern PA Area), South Canaan Telephone, Windstream, North-Eastern Pennsylvania Telephone Company, Frontier Communications, Time Warner Cable, Atlantic Broadband, Blue Ridge Communications, Cablevision, TDS Telecom, Service Electric, Matrix
Rhode Island CenturyLink, Verizon Broadview Networks, CloseCall America, Windstream, Cox, Matrix
South Carolina AT&T, CenturyLink, Verizon Birch, Atlantic Broadband, Deltacom, Comporium, Genesis Telecommunications, Windstream, Time Warner Cable, Charter, Hargray, TDS Telecom, Matrix, Waccamaw Telecommunications Systems, Inc.[Farmers Telephone Cooperative]
South Dakota CenturyLink Birch, Santel Communications, Midcontinent Communications, Matrix
Tennessee AT&T, CenturyLink Birch, Deltacom, Windstream, Frontier Communications, Charter, TDS Telecom, Comcast, Matrix
Texas AT&T, CenturyLink, Verizon Birch, Sage Telecom, Comcast, CloseCall America, Grande Communications, Windstream, ICBS, Time Warner Cable, Charter, Consolidated Communications, Matrix
Utah CenturyLink Bresnan Communications, Comcast, Frontier Communications, Windstream, Matrix, UBTA-UBET
Vermont CenturyLink, Fairport (formerly Verizon) Broadview Networks, Fairpoint, Charter, TDS Telecom, Matrix
Virginia CenturyLink, Verizon Birch, CloseCall America, CenturyLink, Charter, Cox, Fairpoint, Windstream, TDS Telecom, Comcast, RCN (Falls Church), Matrix, Bristol Virginia Utilities
Washington CenturyLink Birch, Comcast, Charter, Fairpoint, Hood Canal Communications, Whidbey Telecom, TDS Telecom, Matrix
West Virginia AT&T, CenturyLink, Verizon Armstrong, Atlantic Broadband, Frontier Communications, Time Warner Cable, Comcast, Matrix
Wisconsin AT&T, CenturyLink, Verizon Birch, Sage Telecom, CloseCall America, West Wisconsin Telcom, 24-7 Telcom, Tri-County Communications, Richland-Grant Telephone, Baldwin Telcom, Frontier Communications, TDS Telecom, Time Warner Cable, Charter, Windstream, NewCore Wireless, Matrix
Wyoming CenturyLink Birch, Bresnan Communications, Cellular One, Matrix, Silver Star Communications, UBTA-UBET, Union Telephone Company

See also[edit]

Notes[edit]

Century has not been in Alaska since about 1998 when it was purchased by a company that Shortly afterwards changed its name from PTI to Alaska Communications(ACS).