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203 Area Code: Location, Time Zone & Phone Lookup

(203)
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What Does Area Code 203 Mean?

Area code 203 is located in southwestern Connecticut and covers Bridgeport, New Haven, Stamford, Waterbury, and Norwalk. It has a single overlay (475) that serves the same area.

Major Cities in 203 Area Code
Bridgeport Connecticut map

Other Cities That Use 203 Area Code

203 Area Code Scam & Spam Report

Sep 2026
0spam reports this month
0.4%of (203) numbers have reports
Othermost reported scam type
0.4%(203)
—State
—United States

Counts describe reported call activity, not the people who hold these numbers.

12-MONTH TREND

MOST COMMON SCAMS REPORTED

Other46%
IRS / tax19%
Scam (other)12%
Robocall7%

Sources: community reports across our network, FTC Do Not Call complaints (unverified consumer reports), carrier records. Updated automatically.

Area Codes Starting with 2

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Area code 203 is located in the state of Connecticut. It covers the southwestern corner of the state, including Bridgeport, Stamford, and Norwalk. Area code 203 is one of the original 86 area codes created in 1947. It has been in use since 1951.

203 is located in the Eastern Time Zone.

Phone Number Prefixes In The 203 Area Code