Area Code 203

Where is area code 203?

Area code 203 serves Connecticut, covering New Haven, Stamford, Bridgeport, Norwalk, Waterbury. In total our directory records 800 phone prefixes in this area code, spread across 34 cities and 3 counties.

The area code sits in the Eastern time zone (UTC-05:00), where the local time is now approximately 4:58 PM. The oldest prefix on record here entered service on 1994-02-04, and the newest on 2015-07-29.

Of the prefixes with a known line type, 25% are wireless and 75% landline — 191 mobile against 586 fixed-line prefixes.

Where is area code 203?

Area code 203 serves Connecticut, including New Haven. It covers 34 cities across 3 counties, in the Eastern time zone.

What time is it in area code 203?

Area code 203 observes Eastern time (UTC-05:00). The current local time is approximately 4:58 PM.

When was area code 203 introduced?

The earliest phone prefix recorded in area code 203 was put in service on 1994-02-04. The most recent was activated on 2015-07-29.

Is a call from 203 safe to answer?

Our directory holds 3,296 caller reports covering 909 numbers in area code 203. A valid area code does not guarantee a legitimate caller, since numbers can be spoofed.

What cities are in area code 203?

The largest places served by area code 203 are New Haven, Stamford, Bridgeport, Norwalk, Waterbury, Danbury, Greenwich, Meriden. In total it covers 34 cities across 3 counties.

How is a 203 phone number written?

A number in this area code is written +1 (203) XXX-XXXX in international format, or (203) XXX-XXXX domestically. The +1 is the country code shared by the United States, Canada and other NANP members.

Can scammers fake a 203 number?

Yes. Caller ID was built without verification, so a caller can display almost any number. Scammers often pick a number matching the area code of the person they are calling — known as neighbour spoofing — because a local-looking call is answered more often. The US industry response, STIR/SHAKEN, lets carriers sign and verify caller ID, but coverage is still incomplete.

Why do I get calls from numbers with my own area code?

Almost always neighbour spoofing: the caller fabricates a number sharing your area code, and sometimes your prefix, so the call looks like it comes from someone nearby. A matching area code is not evidence that the caller is local.

How do I report a spam call from 203?

Report unwanted calls to the FTC at reportfraud.ftc.gov, and add your number to the Do Not Call registry at donotcall.gov. Include the caller ID number even if you believe it was spoofed — regulators use the pattern of reports, not the individual number.