203 Area CodeBridgeport, CT
Area code 203 covers Bridgeport and nearby communities in Connecticut, in the Eastern Time (ET) zone, home to about 1.3 million people across 43 cities. It overlays 475, so the same region uses both and every local call needs all ten digits.
Overview
- Major City
- Bridgeport
- State
- Connecticut (CT)
- Timezone
- Eastern Time (ET)
- Current Time
- Overlay
- Yes – shares area with 475
Where is area code 203?
Area code 203 serves part of Bridgeport, CT and the surrounding areas. It has a single overlay (475) that serves the same area.
Overview of the 203 Area Code
What is the 203 area code?
The 203 area code serves Bridgeport, Connecticut, alongside other established area codes. When you see a 203 number, it indicates a local number within this geographic area.
Why was area code 203 created?
The 203 area code was introduced as an overlay to add numbers in Bridgeport once the existing area code 475 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 203 Area Code
The 203 area code serves Bridgeport and surrounding areas in Connecticut. It operates within the Eastern Time (ET) time zone. It complements the coverage of area code 475. This area code covers several key cities, including:
- Bridgeport
- Stamford
- New Haven
- Waterbury
- Norwalk
- Danbury
Got a call from a 203 number? It came from Bridgeport, CT. Since 203 overlays with 475, every local call in the region needs all ten digits to land on the right line. Inside 203, Bridgeport holds about 12% of the population; the rest is split across 42 smaller cities.
Bridgeport Area Codes Overview
Bridgeport is served by multiple area codes, reflecting its telecommunications needs. The 203 area code operates alongside 475. Here are the area codes serving this region:
The introduction of the 203 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 203 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Bridgeport | CT | 151,599 | 1% | 100% |
| Stamford | CT | 139,134 | 4% | 100% |
| New Haven | CT | 137,562 | 1% | 100% |
| Waterbury | CT | 115,908 | 2% | 100% |
| Norwalk | CT | 93,661 | 3% | 100% |
| Danbury | CT | 88,692 | 3% | 100% |
| Meriden | CT | 60,849 | 2% | 100% |
| West Haven | CT | 55,379 | 1% | 100% |
| Stratford | CT | 51,384 | 1% | 100% |
| Milford | CT | 51,271 | 2% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 203 been reported for unwanted calls?
Yes – 575 unwanted-call complaints were reported to the FTC for numbers showing a 203 area code (May 29 – Jul 2, 2026).
- 62% robocalls
- ↑ 65% vs prior period
Most-reported subjects
- Other31%177
- Home improvement & cleaning25%142
- Dropped call or no message13%77
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 203?
78% assigned to a telco
- 79% Landline
- 21% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (203)200- | Landline | Bandwidth.Com Clec |
| (203)201- | Wireless | Usa Mobility Wireless |
| (203)202- | Landline | Cablevision Lightpath |
| (203)204- | Landline | Teleport Communications America |
| (203)205- | Landline | Frontier Comm Of Ct |
| (203)206- | Wireless | New Cingular Wireless Pcs |
| (203)207- | Landline | Frontier Comm Of Ct |
| (203)208- | Landline | Comcast Ip Phone |
| (203)209- | Wireless | Verizon Wireless |
| (203)210- | Landline | Cablevision Lightpath |
Frequently Asked Questions about the 203 Area Code
Who called me from a 203 number?
A 203 number is assigned to Bridgeport, Connecticut, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 203 code to look nearby, so a 203 number doesn't prove the caller is local. Recently, 575 unwanted-call complaints were reported to the FTC for numbers showing the 203 code (62% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 203 a scam area code?
No area code is a scam on its own. 203 is a normal, officially assigned code for Bridgeport, Connecticut. Spam callers spoof local codes to raise the odds you answer, so 203 on your caller ID says nothing about who is really calling. Recently, 575 unwanted-call complaints were reported to the FTC for numbers showing the 203 code (62% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 203 area code?
Repeated calls from different 203 numbers are usually spoofing: a robocaller rotates through 203 numbers so each call looks local and slips past simple blocks. Recently, 575 unwanted-call complaints were reported to the FTC for numbers showing the 203 code (62% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 203 number?
If you aren't expecting a 203 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 203 area code?
Block a single 203 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 203 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 203?
Area code 203 covers Bridgeport and the surrounding area in Connecticut, spanning 43 cities with about 1,315,390 residents. It shares its area with overlay code 475.
Is 203 a real area code?
Yes. 203 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Bridgeport, Connecticut. A real code can still show up on spoofed spam calls, so treat unknown 203 calls with normal caution.
What timezone is the 203 area code in?
The 203 area code is in the Eastern Time (ET). Because a number can be kept when someone moves or switches to VoIP, a specific 203 caller may not be in that zone.
How do I call a 203 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 203 and the seven-digit number. From a mobile phone you can usually just enter +1 203 followed by the number and let the phone add the exit code for you.