See what locations have area code 203

Dialing codes › Reverse area code lookup › 203


Area code "203" is used to dial to the following cities:

  • Germany - North Rhine-Westphalia - Duisburg
  • USA - Connecticut - Ansonia
  • USA - Connecticut - Beacon Falls
  • USA - Connecticut - Bethany
  • USA - Connecticut - Bethel
  • USA - Connecticut - Bethlehem (CT)
  • USA - Connecticut - Branford (CT)
  • USA - Connecticut - Bridgeport
  • USA - Connecticut - Brookfield (CT)
  • USA - Connecticut - Cheshire (CT)
  • USA - Connecticut - Danbury
  • USA - Connecticut - Darien (CT)
  • USA - Connecticut - Derby (CT)
  • USA - Connecticut - East Haven
  • USA - Connecticut - Easton (CT)
  • USA - Connecticut - Fairfield (CT)


  • USA - Connecticut - Greenwich
  • USA - Connecticut - Guilford
  • USA - Connecticut - Hamden
  • USA - Connecticut - Madison (CT)
  • USA - Connecticut - Meriden
  • USA - Connecticut - Middlebury
  • USA - Connecticut - Milford
  • USA - Connecticut - Monroe (CT)
  • USA - Connecticut - Naugatuck
  • USA - Connecticut - New Canaan
  • USA - Connecticut - New Fairfield
  • USA - Connecticut - New Haven
  • USA - Connecticut - Newtown
  • USA - Connecticut - North Branford
  • USA - Connecticut - North Haven
  • USA - Connecticut - Norwalk (CT)
  • USA - Connecticut - Orange (CT)
  • USA - Connecticut - Oxford (CT)
  • USA - Connecticut - Prospect
  • USA - Connecticut - Redding (CT)
  • USA - Connecticut - Ridgefield (CT)
  • USA - Connecticut - Seymour (CT)
  • USA - Connecticut - Shelton (CT)
  • USA - Connecticut - Southbury
  • USA - Connecticut - Stamford
  • USA - Connecticut - Stratford
  • USA - Connecticut - Trumbull
  • USA - Connecticut - Wallingford
  • USA - Connecticut - Waterbury
  • USA - Connecticut - West Haven
  • USA - Connecticut - Weston (CT)
  • USA - Connecticut - Westport
  • USA - Connecticut - Wilton (CT)
  • USA - Connecticut - Wolcott
  • USA - Connecticut - Woodbridge
  • USA - Connecticut - Woodbury (CT)