Question 1

Where is area code 203?

Accepted Answer

Area code 203 covers New Haven and nearby cities including Bridgeport, Stamford, Waterbury in Connecticut, in the Eastern Time.

Question 2

What cities use area code 203?

Accepted Answer

Area code 203 serves New Haven, Bridgeport, Stamford, Waterbury, Norwalk, and 11 other communities in Connecticut.

Question 3

What time zone is area code 203 in?

Accepted Answer

Area code 203 is in the Eastern Time (America/New_York).

Question 4

How do you dial a 203 number?

Accepted Answer

Dial all 10 digits: 203 followed by the 7-digit local number. From abroad, dial +1 203 and the local number.

Question 5

Is a call from area code 203 a scam?

Accepted Answer

A 203 number is geographically tied to Connecticut, but caller ID can be spoofed, so the displayed area code does not prove where a caller really is. If you did not expect the call, do not share personal information and consider looking the number up.

Question 6

Is 203 a country code?

Accepted Answer

No. 203 is a US area code (a domestic 3-digit code), not a country code. The country (calling) code for the United States is +1, shared across the North American Numbering Plan. So a full 203 number written for international dialing looks like +1 203 followed by the 7-digit local number.

Area Code 203

Cities in area code 203

Area codes by city

Carriers in area code 203

Other Connecticut area codes

Nearby area codes