About area code 203: location, common spam callers, related area codes, and more. Includes 203 reverse phone lookup to identify spam callers.

Browse area code 203 phone numbers, prefixes and exchanges. The 203 area code serves Wallingford, Stamford, Hartford, Middletown, New Haven, covering 60 ZIP codes in 7 counties.

The 203 area code is a telephone area code in the North American Numbering Plan (NANP) for southwestern Connecticut. It covers most of Fairfield County, including Bridgeport, New …

Dec 1, 2025 · Area Code 203 is located in Connecticut. It covers 46 cities, including Milford, Bridgeport, Stamford, New Haven, and Waterbury. It also covers 6 planning regions, including …

Mar 9, 2025 · 203 is an area code located in the state of Connecticut, US. The largest city it serves is Bridgeport. Find out where 203 area code zone from, which states, counties and …

Where is Area Code 203? The 203 area code is located in the state of Connecticut . 203 is one of the 357 three-digit telephone area codes in the USA. It covers roughly 2,292,761 unique …

Area codes 203 and 475 are telephone area codes in the North American Numbering Plan (NANP) for the southwestern part of the U.S. state of Connecticut.

Area code 203 is located in Connecticut. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.

The 203 area code is located in the state of Connecticut, and according to Intelius data, covers roughly 2,899,500 phone numbers. Stamford is the largest city within this area code with a …

203 area code information for Bridgeport, Connecticut. Timezone, overlay codes, and more.