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Area Code 203 Map and Location

Area code 203 is located in South Central Connecticut Planning Region. That is the approximate area that is served by this exchange.

Area Code 203 - Cities, Neighborhoods and Local Features

  • North Haven
  • Darien
  • Greenwich
  • Guilford
  • Danbury
  • Waterbury
  • Branford
  • Bridgeport
  • Wilton
  • Oddball Codes
  • Meriden
  • Westport
  • Stamford
  • Trumbull
  • Huntington
  • Norwalk
  • Derby
  • Ridgefield
  • Madison
  • Cheshire
  • Fairfield
  • Hartford
  • Wallingford
  • Newtown
  • Old Greenwich
  • Milford
  • New Canaan
  • Redding
  • Wolcott
  • Seymour
  • Naugatuck
  • New Haven

Area code 203 currently contains 800 valid local exchanges. Click an exchange below to get more information about the supported thousands digit of the phone number.s