203 Area Code, Connecticut

203 area code is the telephone area code of the North American Numbering Plan (NANP) in Connecticut, United States of America. It was one of the original area codes created in 1947 and covered of Southwestern Connecticut (Bridgeport, Danbury, New Haven, Waterbury).

Area Code203
Major CityBridgeport
Service Date01/01/1947
Time ZoneEastern
Overlay Complex203/475
LocationConnecticut (CT)
CountryUnited States

The service date for which area code 203 was assigned began on January 1, 1947. The code has one overlay (475) which was added in 2009 as demand increased.

Places covered by phone area code 203

Area CodeCity/TownCounty
203AnsoniaNew Haven County
203AvonHartford County
203Beacon FallsNew Haven County
203BethanyNew Haven County
203BethelFairfield County
203BethlehemLitchfield County
203BotsfordFairfield County
203BranfordNew Haven County
203BridgeportFairfield County
203BristolHartford County
203CheshireNew Haven County
203Cos CobFairfield County
203DanburyFairfield County
203DarienFairfield County
203DerbyNew Haven County
203East HavenNew Haven County
203EastonFairfield County
203FairfieldFairfield County
203GeorgetownFairfield County
203GlastonburyHartford County
203GranbyHartford County
203Greens FarmsFairfield County
203GreenwichFairfield County
203GuilfordNew Haven County
203HamdenNew Haven County
203HartfordHartford County
203HawleyvilleFairfield County
203KillingworthMiddlesex County
203MadisonNew Haven County
203MeridenNew Haven County
203MiddleburyNew Haven County
203MiddlefieldMiddlesex County
203MiddletownMiddlesex County
203MilfordNew Haven County
203MilldaleHartford County
203MonroeFairfield County
203NaugatuckNew Haven County
203New CanaanFairfield County
203New FairfieldFairfield County
203New HavenNew Haven County
203New MilfordLitchfield County
203NewtownFairfield County
203North BranfordNew Haven County
203North HavenNew Haven County
203NorthfordNew Haven County
203NorwalkFairfield County
203OakdaleNew London County
203Old GreenwichFairfield County
203OrangeNew Haven County
203OxfordNew Haven County
203ProspectNew Haven County
203Redding CenterFairfield County
203Redding RidgeFairfield County
203RidgefieldFairfield County
203RiversideFairfield County
203Sandy HookFairfield County
203SeymourNew Haven County
203SheltonFairfield County
203South BritainNew Haven County
203SouthburyNew Haven County
203SouthportFairfield County
203StamfordFairfield County
203StevensonFairfield County
203StratfordFairfield County
203TrumbullFairfield County
203WallingfordNew Haven County
203WaterburyNew Haven County
203West HartfordHartford County
203West HavenNew Haven County
203WestonFairfield County
203WestportFairfield County
203WiltonFairfield County
203WolcottNew Haven County
203WoodbridgeNew Haven County
203WoodburyLitchfield County

The main post offices in each region in Nigeria have postal codes ending in 0001. The lowest postal code is 100001 and the highest with a special code is 982112.

NIPOST or Nigerian Postal Service is a company owned and operated by the government of this country. The country has a total of more than 5000 post offices spread throughout the region. Find the correct ZIP (Zone Improvement Plan) code or Postal Code for the postal address you need.