List of United States telephone companies

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Regional Bell Operating Companies[edit]

The Regional Bell Operating Companies (RBOCs) are the result of the break-up of the Bell System in 1984.

  • 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: Delaware, District of Columbia, Maryland, Massachusetts, New Jersey, New York, Pennsylvania, Rhode Island, Virginia
  • CenturyLink: Arizona, Colorado, Idaho, Iowa, Minnesota, Missouri, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Texas, Utah, Washington, Wyoming
  • Frontier Communications: West Virginia, Connecticut, (GTE areas in California, Texas, Florida, purchased from Verizon in 2016)
Remaining RBOC map as of 2005. Note that Qwest is now CenturyLink, BellSouth is now AT&T, and AT&T in Connecticut (formerly SNET) is now Frontier.

Other major incumbent local exchange carriers[edit]

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 and smaller city local exchanges in 33 states.
  • Frontier Communications, in addition to its role as the RBOC for West Virginia, now serves mainly rural and some suburban and smaller city areas in 27 other states (many formerly part of the GTE ILEC system purchased from Verizon). It also purchased AT&T's landline business in Connecticut in 2013, though these are not considered an RBOC, as the Southern New England Telephone Company, from which they descend, was a franchisee of the Bell System, and not subject to the same regulations after the Bell System breakup.
  • 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.
  • Consolidated Communications, in addition to access lines in Maine, New Hampshire, and Vermont, in Northern New England which it gained from its acquisition of FairPoint, also serves rural areas in 21 other states.[1]
  • Telephone and Data Systems, (through its subsidiary TDS) serves mainly rural areas in parts of 36 states.[2]
  • Cincinnati Bell, which serves the greater Cincinnati area, and Hawaii due to its acquisition of Hawaiian Telcom[3] was not included in the Bell System breakup of 1984 because the former AT&T held only a minority stake in that company.
  • Verizon, in addition to its role as a RBOC in its areas retained in the East, serves former GTE areas in Pennsylvania and Virginia. Verizon formerly served California, Florida and Texas before selling to Frontier Communications in 2016.
  • Claro Puerto Rico, which serves every exchange in Puerto Rico, has been owned by the international telecommunications giant América Móvil since in 2007.[4]

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

Regional telephone companies and VOIP providers by state[edit]

State Regional Bell operating company (RBOC)[5] Other telephone companies
Alabama AT&T, CenturyLink[6] C Spire, Birch, Windstream, Fairpoint, Frontier Communications, Comcast, Charter Communications, TDS Telecom, Matrix, Cytranet, Comtech21
Alaska Alaska Communications AlaskaTel, Alaska Power and Telephone Company, Alaska Communications, GCI, Cordova Telephone Cooperative, Matanuska Telephone Association, Tel Alaska, Copper Valley Telephone Cooperative
Arizona AT&T, CenturyLink Cox, Crexendo Inc., Frontier Communications, Matrix, Nextiva, Windstream, TDS Telecom, Comtech21, Charter Communications, Smith Bagley Inc dba Cellular One of NE AZ
Arkansas AT&T, CenturyLink Birch, Sage Telecom, Windstream, Comcast, Ritter Communications, TDS Telecom, Matrix, Comtech21
California AT&T, CenturyLink, Frontier Communications Birch, Carolina Digital Phone,[7] Comcast, Sage Telecom, Sonic.net, Blue Casa, Windstream, Frontier Communications, Charter Communications, Pacific Telephone Company, Cox Communications, TDS Telecom, Matrix, TelePacific Communications, TCAST Communications, Wiline Internet And Voice, Consolidated Communications, ZTelco, Comtech21
Colorado CenturyLink Comcast, Charter Communications, FairPoint, Windstream, TDS Telecom, Matrix, Comtech21
Connecticut CenturyLink, Frontier (formerly AT&T)[8] Broadview Networks, Sage Telecom, Comcast Xfinity, Windstream, Charter Communications, Cox, Altice, Matrix, LinkUP Broadband, Comtech21
Delaware CenturyLink, Verizon Birch, Broadview Networks, Carolina Digital Phone,[7] CloseCall America, Atlantic Broadband, Cavalier Telephone, Comcast, Matrix, Comtech21
District of Columbia AT&T, CenturyLink, Verizon Broadview Networks, Comcast, Carolina Digital Phone,[7] Cavalier, RCN, Windstream, Matrix, Comtech21
Florida AT&T, CenturyLink, Frontier Communications ON DRIVE TECHS, Birch, Carolina Digital Phone, VoiceOnyx Business Phone Service, Nettalk Inc. USA, Cavalier, Northlake Telecom, CloseCall America, Access Integrated Networks, Comcast, Deltacom, Engage Communications, Fairpoint, FracTEL LLC, Windstream, Frontier Communications, Cox Communications, Charter Communications, Atlantic Broadband, TDS Telecom, Matrix, Sling Broadband, Star2Star Communications, LIghtspeed Voice, Xpedeus, Comtech21, C Spire
Georgia AT&T, CenturyLink Birch, Carolina Digital Phone,[7] Cavalier, Cox, Comcast, Deltacom, Windstream, Frontier Communications, Charter Communications, Cox Communications, Hargray, TDS Telecom, Matrix, Comtech21, Ellijay Telephone Company
Hawaii Cincinnati Bell Servpac, Sandwich Isles Communications, CenturyLink, Charter Communications (Statewide), Comtech21
Idaho AT&T, CenturyLink Frontier Communications, Cable One (Boise Area), Charter Communications, TDS Telecom, Matrix, Comtech21
Illinois AT&T, CenturyLink, Verizon Birch, Carolina Digital Phone,[7] Cavalier, Sage Telecom, CloseCall America, Consolidated Communications, Comcast, Fairpoint, Mediacom, RCN (Chicago Area), Windstream, Frontier Communications, Charter Communications, TDS Telecom, NewCore Wireless, Matrix, RangaTel, Comtech21
Indiana AT&T, CenturyLink, Verizon Birch, Carolina Digital Phone,[7] Zentality Communications, Smithville Fiber, Sage Telecom, Comcast, Cincinnati Bell, CloseCall America, Frontier Communications, Windstream, TDS Telecom, Matrix, Charter Communications, Comtech21, Mulberry Communications, Perry-Spencer Communications, Clay County Rural Telephone d/b/a Endeavor Communications, Enhanced Telecommunications d/b/a ETC, Craigville Communications, Ligonier Telephone Company, New Paris Telephone Company, Indigital, Rochester Telephone Company, Sweetser Telephone Company, Geetingsville Telephone Company, Swayzee Communications, Yeoman Telephone Company, Daviess-Martin Telephone Company, Washington County Rural Telephone d/b/a Telemedia, Ninestar Communications, New Lisbon Telephone Company, NITCO
Iowa CenturyLink Birch, Windstream, Frontier Communications, Mediacom, Matrix, TDS Telecom, NewCore Wireless, Comtech21
Kansas AT&T, CenturyLink Birch, Carolina Digital Phone,[7] Sage Telecom, Rural Telephone, CloseCall America, Cox, Fairpoint, Matrix, Charter Communications, Consolidated Communications, Comtech21, Encounter Wireless Communications
Kentucky AT&T, CenturyLink, Verizon Birch, Brandenburg Telephone Company, Cincinnati Bell, Carolina Digital Phone,[7] Windstream, TDS Telecom, Matrix, Charter Communications, Comtech21
Louisiana AT&T, CenturyLink Birch, Cavalier, Access Integrated Networks, Deltacom, Windstream, Charter Communications, Cox, Matrix, Comtech21
Maine Consolidated Communications (formerly FairPoint) Broadview Networks, Comcast, CloseCall America, FairPoint, Lincolnville Telephone Company, Windstream, Charter Communications, TDS Telecom, Matrix, Comtech21
Maryland CenturyLink, Verizon Birch, Broadview Networks, Comcast, Cavalier, CloseCall America, Easton Velocity, Armstrong, Windstream, Atlantic Broadband, PanTerra Networks, RCN (Montgomery County), Matrix, Comtech21
Massachusetts Verizon Birch, Broadview Networks, DSCI Corp., Comcast, CloseCall America, RCN (Boston Area), Charter Communications, Matrix, Comtech21
Michigan CenturyLink, AT&T Birch, 123Net, Sage Telecom, Carolina Digital Phone,[7] Cavalier, CloseCall America, TDS Metrocom, Westphalia Telephone Company, Lennon Telephone Company, MichTel, Frontier Communications, Charter Communications, Comcast, Windstream, Matrix, TelNet Worldwide, BullsEye Telecom, Comtech21.
Minnesota CenturyLink Birch, Comcast, Sage Telecom, Frontier Communications, Charter Communications, Midcontinent Communications, Windstream, TDS Telecom, Matrix, NewCore Wireless, PanTerra Networks, Integra Telecom, Mediacom, Consolidated Communications, Comtech21
Mississippi AT&T, CenturyLink C Spire, Birch, Cavalier, Comcast, Deltacom, Windstream, Frontier Communications, MegaGate Broadband, Charter Communications, TDS Telecom, Matrix, Comtech21
Missouri AT&T, CenturyLink Big River Telephone Company, Birch, Carolina Digital Phone,[7] Windstream, Sage Telecom, KLM Telephone Company, Charter Communications, FairPoint, TDS Telecom, Matrix, Consolidated Communications, Comtech21
Montana CenturyLink Birch, Charter Communications, Frontier Communications, Matrix, Comtech21
Nebraska AT&T, CenturyLink Birch, Windstream, Frontier Communications, Charter Communications, Cox, Midcontinent Communications, Matrix, Comtech21
Nevada AT&T, CenturyLink, Verizon Frontier Communications, CC Communications, Charter Communications, Cox, Matrix, Telecom North America, TelePacific Communications, Comtech21
New Hampshire CenturyLink, Consolidated Communications (formerly FairPoint) Broadview Networks, CloseCall America, Bretton Woods Telephone, Dixville Telephone Company, Dunbarton Telephone Company, Granite State Communications, TDS Telecom, Windstream, Matrix, Union Telephone Co, Northland Telephone Co,[9] Comtech21, Comcast
New Jersey CenturyLink, Verizon Birch, Broadview Networks, Cavalier, CloseCall America, Covista Communications, Windstream, Charter Communications, Cablevision, Comcast, Service Electric, Matrix, Comtech21
New Mexico CenturyLink Birch, Comcast, Cable One, Windstream, Frontier Communications, Matrix, Comtech21, Smith Bagley Inc dba Cellular One of NE AZ
New York CenturyLink, Verizon Birch, Broadview Networks, Carolina Digital Phone,[7] Cavalier, CloseCall America, Pure Minutes Mobile, Frontier Communications, Armstrong, Fairpoint, Windstream, Frontier Communications, Charter Communications, Cablevision, OVETEL Atlantic Broadband, TDS Telecom, Finger Lakes Technologies Group, RCN (Manhattan and Queens), Matrix, The Flat Planet Phone Company, Comtech21
North Carolina AT&T, CenturyLink Birch, Carolina Digital Phone,[7] Cavalier, Deltacom, Frontier Communications, Windstream, Charter Communications, ATMC, TDS Telecom, Matrix, North State Communications, Comtech21
North Dakota CenturyLink SRT Communications, Birch, Dickey Rural Communications, Bek Telephone, Consolidated Telephone, Midcontinent Communications, TDS Telecom, Matrix, Comtech21
Ohio AT&T, CenturyLink, Verizon Birch, BuckeyeTel, Sage Telecom, Cavalier, CloseCall America, Cincinnati Bell, Ohio Digital Business VoIP, Windstream, Fairpoint, Frontier Communications, Charter Communications, Cox, TDS Telecom, Matrix, Horizon Telcom, Inc., Wide Open West (WOW!)], Comtech21
Oklahoma AT&T, CenturyLink Birch, Windstream, Sage Telecom, Cox, Fairpoint, TDS Telecom, Matrix, LOGIX Communications, Comtech21, Encounter Wireless Communications
Oregon CenturyLink, Verizon Birch, Charter Communications, Comcast, Frontier Communications, TDS Telecom, Matrix, TRUSTID, Comtech21
Pennsylvania CenturyLink, Verizon Armstrong, Atlantic Broadband, Blue Ridge Communications, Cablevision, Cavalier, Citizens Telephone Company of Kecksburg, CloseCall America, Comcast, Consolidated Communications, Frontier Communications, Full Service Network, Ironton Telephone Company, Matrix, North-Eastern Pennsylvania Telephone Company, Palmerton Telephone Company, RCN (Eastern PA Area), Service Electric, South Canaan Telephone, TDS Telecom, Charter Communications, Windstream, Birch, Comtech21
Rhode Island CenturyLink, Verizon Broadview Networks, CloseCall America, Windstream, Cox, Matrix, Comtech21
South Carolina AT&T, CenturyLink Birch, Carolina Digital Phone,[7] Atlantic Broadband, Deltacom, Comporium, Frontier Communications, Genesis Telecommunications, Windstream, Charter Communications, Comcast, Hargray, TDS Telecom, Matrix, Waccamaw Telecommunications Systems, Inc.[Farmers Telephone Cooperative], Comtech21
South Dakota CenturyLink Birch, Santel Communications, Midcontinent Communications, Matrix, Comtech21
Tennessee AT&T, CenturyLink Birch, Carolina Digital Phone,[7] Deltacom, Windstream, Frontier Communications, EPB Fiber Optics, Charter Communications, TDS Telecom, Ritter Communications, Comcast, Matrix, Comtech21
Texas AT&T, CenturyLink, Frontier Communications Birch, Sage Telecom, Comcast, CloseCall America, Grande Communications, Frontier Communications, ICBS, Charter Communications, Consolidated Communications, Matrix, Windstream, LOGIX Communications, Comtech21
Utah CenturyLink Bresnan Communications, Comcast, Frontier Communications, Windstream, Matrix, UBTA-UBET, Comtech21
Vermont CenturyLink, Consolidated Communications (formerly FairPoint) Broadview Networks, Charter Communications, TDS Telecom, Matrix, Comtech21
Virginia CenturyLink, Verizon Birch, Carolina Digital Phone,[7] CloseCall America, CenturyLink, Charter, Cox, Fairpoint, Lumos Networks, Shenandoah Telecommunications (Shentel), Windstream, TDS Telecom, Comcast, RCN (Falls Church), Matrix, Bristol Virginia Utilities, Comtech21
Washington CenturyLink,

Frontier Communications (formerly Verizon, GTE)

Birch, Comcast, Charter Communications, Fairpoint, Frontier Communications,[10] Hood Canal Communications, Whidbey Telecom, TDS Telecom, Matrix, Comtech21
West Virginia AT&T, CenturyLink, Verizon Armstrong, Atlantic Broadband, Carolina Digital Phone,[7] Frontier Communications, Comcast, Matrix, West Virginia Digital Phone, Comtech21
Wisconsin AT&T, CenturyLink, TDS Telecom FitTech Hosting, Birch, Sage Telecom, CloseCall America, West Wisconsin Telcom, 24-7 Telcom, Tri-County Communications, Richland-Grant Telephone, Baldwin Telcom, Frontier Communications (Formerly Verizon/L-GTE areas), TDS Telecom, Charter Communications (Statewide), Comcast (Manitowoc), Mediacom, Windstream, NewCore Wireless, Matrix, Comtech21
Wyoming CenturyLink Birch, Charter Communications, Cellular One, Matrix, Silver Star Communications, UBTA-UBET, Union Telephone Company, Comtech21

See also[edit]

Notes[edit]

  1. ^ "About Consolidated Communications". www.consolidated.com.
  2. ^ http://s1.q4cdn.com/371368693/files/doc_financials/annual/2016/TDS2016AnnualReport.pdf
  3. ^ "Cincinnati Bell acquires two peers for $851M".
  4. ^ * Claro Puerto Rico, which serves every exchange in Puerto Rico, has been owned by the international telecommunications giant América Móvil since in 2007.
  5. ^ "CenturyLink – Tariffs Search Documents". centurylink.com.
  6. ^ CenturyLink. "State and Local Information - CenturyLink".
  7. ^ a b c d e f g h i j k l m n o p "VoIP, Cloud based Telephone, SIP Trunks and Digital Phone". Carolina Digital Phone. November 17, 2016.
  8. ^ "AT&T to sell Connecticut wireline assets to Frontier for $2 billion". Reuters. December 17, 2013.
  9. ^ "Companies Regulated by or Registered with NHPUC". New Hampshire Public Utilities Commission. Retrieved December 1, 2010.
  10. ^ "Frontier Communications to Acquire Verizon Assets Creating Nation's Largest Pure Rural Communications Services Provider". Retrieved April 17, 2018.