What is an Area Code? An area code is a section of a telephone number that denotes the broad area that the phone receiving the call is based in. Area codes were first introduced circa 1947 for operator use only. Area codes are three-digit numbers that represent Numbering Plan Areas (NPAs). The area code for a particular city or region is the series of numbers that you have to dial before someone’s number if you are making a phone call to that place from a different area. Area code 203 serves the state of Connecticut.
The Table Below Shows the Towns and Cities That Use Area Code 203
| Ansonia Bethel Bethlehem Village Branford Center Bridgeport Byram Cannondale Cheshire Village Cos Cob Danbury Darien | Derby East Haven Georgetown Glenville Greenwich Guilford Center Heritage Village Madison Center Meriden Milford Naugatuck | New Haven Newtown North Haven Norwalk Old Greenwich Orange Pemberwick Ridgefield Riverside Shelton Southport | Stamford Stratford Trumbull Wallingford Center Waterbury West Haven Westport Wilton Center Woodbury Center Woodmont |