Where is area code 203? Area code 203 is located in southwestern Connecticut and covers Bridgeport, New Haven, Stamford, Waterbury, and Norwalk. It has a single overlay (475) that serves the same …

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

Feb 1, 2026 · 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 Western Ct …

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

The 203 area code serves Wallingford, Stamford, Hartford, Middletown, New Haven, covering 60 ZIP codes in 7 counties.

3 days ago · 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 cities it covers. Get …

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 serves the state of Connecticut. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 203 is a General Purpose Code. 203 service area does …

What is the 203 Area Code? The 203 area code is a geographic telephone area code serving southwestern Connecticut, primarily covering New Haven County, Fairfield County, and portions of …

Lookup information on Area Code 203 - get demographic, NPA NXX, and other data by area code