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

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

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.

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 …

Nov 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 …

To find information on a specific area code, use the area code lookup that makes it easy to find an area code by number and gives detailed information including city/state, timezone, and area …

Find 203 area code details including city, time zone, and map. Lookup area code 203 phone number, name, and location.

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.

The 203 area code covers the southwestern portion of Connecticut, including most of Fairfield County, all of New Haven County, and a small portion of Litchfield County.

Area code 203 is located in SW Connecticut and includes Bridgeport. View the 203 area code map, major cities, location, timezone and more on TeraCodes.com.