Area code 203
Assigned to Connecticut.
Area code 203 is a geographic code in the North American Numbering Plan. Most of this region uses the America/New York time zone.
Other area codes in Connecticut: 475, 860, 959.
Is a call from 203 local?
Not necessarily. People keep their numbers when they move, internet phone numbers can be used anywhere, and robocallers often spoof local-looking numbers. Learn about spoofing.