203 Area Code: Location, Cities, Map, and Phone Number Lookup
The 203 area code serves southwestern Connecticut, including major cities such as Bridgeport, New Haven, Stamford, and others, and requires 10‑digit dialing due to its overlay with area code 475. H...
Source: User-Interviews
The 203 area code serves southwestern Connecticut, including major cities such as Bridgeport, New Haven, Stamford, and others, and requires 10‑digit dialing due to its overlay with area code 475. History and Basic Overview Area code 203 is one of the original North American Numbering Plan (NANP) area codes, introduced on January 1, 1947, assigned to cover […]
