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AREA CODE · CONNECTICUT

Area code 203

Area code 203 covers Bridgeport, Connecticut. Map, time zone, overlays, carriers, the full list of prefixes and how to dial it.

State: Connecticut Major City: Bridgeport Eastern Time (ET) Overlay: 203/475
01 / WHERE IT IS

Where is area code 203?

Area code 203 is assigned to Bridgeport and the surrounding region in Connecticut. Calls to numbers that start with 203 are routed to this area.

Area code 203 shares its territory with 475. Because it is an overlay, local calls require dialing all 10 digits.

Counties covered

Western Connecticut Planning RegionSouth Central Connecticut Planning RegionGreater Bridgeport Planning RegionNaugatuck Valley Planning Region

Line types

  • Mobile 22.49%
  • Landline 77.51%
02 / MAP

Area code 203 on the map

The shaded area joins the code’s numbering centers; the marker shows its main city.

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© OpenStreetMap contributors

03 / LOCAL TIME

Current time in Bridgeport

This area code is in the Eastern Time (ET) time zone.

Local timeBridgeport, CT--:--:--

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America/New_YorkLive
04 / HOW TO DIAL

How to call Bridgeport

WITHIN THE US203 XXX XXXX

Always 10 digits — landline, mobile or VoIP. Local, long distance or a different state: the format is always the same. You do not need to dial the 1 first.

FROM ABROAD+1 203 XXX XXXX

Exit codes: 00 Europe/Mexico · 011 Canada · 010 Japan · + universal

WHATSAPP / IMESSAGE+1 203 XXX XXXX

Always save the number in international format so messaging apps recognize it correctly:

Call typeTraditional landlineMobile / VoIP
Local (same area code)10 digits10 digits
US long distance1 + 10 digits10 digits
Emergency911911
🌐Universal+1 203 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 203 555 0123
🇦🇺Australia0011 1 203 555 0123
🇯🇵Japan010 1 203 555 0123
HAVE THE FULL NUMBER?

Learn more about that number.

Check the line type and the carrier the number block was originally assigned to.

10 digits to see the carrier and line type of the number

05 / CARRIERS

Carriers in area code 203

Share of the number blocks by carrier and line type.

Landline

Frontier Communications
55%
AT&T
8%
Verizon Business
7%
Lumen Technologies
7%
Windstream Communications
7%
Others
17%

Mobile

Verizon Wireless
35%
AT&T Mobility
30%
T-Mobile USA
27%
USA Mobility
8%
Sinch
1%

Carrier shown is the original assignment of each number block and may differ today because of number portability.

06 / PREFIXES

Complete list of prefixes for area code 203

778 number blocks (NXX) assigned in this area code.

PrefixTypeCityCarrier
(203) 200 Landline New Haven BandwidthBANDWIDTH.COM CLEC, LLC - CT
(203) 201 Mobile New Haven USA MobilityUSA MOBILITY WIRELESS, INC.
(203) 202 Landline Darien Cablevision LightpathCABLEVISION LIGHTPATH, INC. - CT
(203) 203 Landline Greenwich SinchONVOY, LLC - CT
(203) 204 Landline Guilford AT&TTELEPORT COMMUNICATIONS AMERICA, LLC - CT
(203) 205 Landline Danbury Frontier CommunicationsSOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT
(203) 206 Mobile Waterbury AT&T MobilityNEW CINGULAR WIRELESS PCS, LLC - DC
(203) 207 Landline Danbury Frontier CommunicationsSOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT
(203) 208 Landline Branford ComcastCOMCAST IP PHONE, LLC
(203) 209 Mobile Bridgeport Verizon WirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT

Showing 10 of 778 prefixes

07 / FAQ

Frequently asked questions about area code 203

Where is area code 203 used?
Area code 203 serves Bridgeport and the surrounding area in Connecticut, including Western Connecticut Planning Region, South Central Connecticut Planning Region, Greater Bridgeport Planning Region, Naugatuck Valley Planning Region.
What city is area code 203 from?
The main city of area code 203 is Bridgeport, CT.
What time zone is area code 203 in?
Area code 203 is in the Eastern Time (ET) time zone (America/New_York).
Is 203 an overlay area code?
Yes. It shares its territory with 475. In an overlay, every call requires dialing all 10 digits.
How do I call a number with area code 203 from the United States?
Dial the 10 digits: 203 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 203 number from another country?
Dial your country's exit code (or +), then 1, then 203 and the seven-digit number. From a mobile you can use +1 203 XXX XXXX.
Which carriers use area code 203?
Most landline blocks belong to Frontier Communications and most mobile blocks to Verizon Wireless. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 203 for landlines, mobiles or both?
Both. About 77.51% of the number blocks are landline, 22.49% mobile.
How do I save a 203 number in WhatsApp or my phone?
Save it in international format: +1 203 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 203?
The area code only shows the region a number was assigned to; it does not tell you who is calling. Scammers can fake any area code, so do not share personal or banking information with unknown callers, and let unknown numbers go to voicemail.
KEEP EXPLORING

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Other area codes in Connecticut

475 · Bridgeport860 · Hartford959 · Hartford

View all Connecticut area codes →