New Haven, Connecticut Area Code

New Haven, CT Area Codes are

203 and 475

New Haven, CT is currently using an area code overlay in which area codes 203 and 475 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to New Haven, CT area code information read more about area codes 203 and 475 details and Connecticut area codes.

New Haven, CT is located in New Haven County and observes the Eastern Time Zone. View our Times by Area Code tool.

Connecticut Area Code Map








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