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203 Area Code Cell Phones

This 203 page contains information about the (203) area code, located within the US. The 203 areacode is in CT.

According to NPA-NXX exchange data, here are the cities in -203-: Ansonia, Bloomfield, Branford, Bridgeport, Cheshire, Danbury, Darien, Derby, Fairfield, Greenwich, Guilford, Hartford, Huntington, Madison, Meriden, Milford, Naugatuck, New Canaan, New Haven, New London, Newtown, Northford, Norwalk, Old Greenwich, Redding, Ridgefield, Seymour, Southbury, Stamford, Stratford, Trumbull, Wallingford, Waterbury, Westport, White Plains, Wilton, Wolcott and Woodbury

Phone numbers, especially cell phones, can easily be "ported" now, but here are the main carriers and cell companies for area code 203.

  • American Messaging (Am), Inc.
  • Aquis Communications, Inc.
  • Arch Wireless Holdings
  • At&t - Local
  • Blue Licenses Holding, Llc
  • Broadband Office Communications
  • Broadwing Communications, Llc
  • Brooks Fiber Communications
  • Cablevision Lightpath, Inc.
  • Cellco Partnership Dba Verizon Wireless
  • Choice One Communications, Inc.
  • Conversent Communications Of Connec
  • Cox Connecticut Telecom, Llc
  • Ctc Communications
  • Geotek Communications, Inc.
  • Global Crossing Local Services, Inc
  • Global Naps
  • Level 3 Communications, Llc
  • Mci Metro Ats, Inc.
  • Metrocall
  • Nextel Communications, Inc.
  • Omnipoint Communications, Inc.
  • Paetec Communications, Inc.
  • Southern New England Tel Co
  • Southwestern Bell Mobile Systems, L
  • Sprint Spectrum L.P.
  • Teleport Commun Group
  • Verizon New York
  • Woodbury Telephone Company

The state in which 203 is predominately located is: CT. There are additional area codes within CT, including: 475, 860 and 959.

Did you know? Here are some other interesting tidbits about 203:

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