203 area code: location, overlays and numbers
The US telephone area code 203 serves Bridgeport, Connecticut and has operated since 1947. It shares an overlay with 475.
- Location
- Bridgeport, Connecticut
- Service began
- 1947
- The time zone
- Eastern time
- Overlay
- 475
- Calls within the area
- 10-digit dialing
- About rate centres
- 32
- Expected exhaustion
- 2055
- Country calling prefix
- +1 (United States)
The NANPA public reports on file from 11/01/2026 are the area code report and the rate-centre report. For the exhaust year, see NANPA projections 2026-1 (April 2026). This website is not an official NANPA site.
Get your own 203 number
A 203 number can be obtained in two ways. Your provider includes a new number in its plan, using one it holds in the code when you sign up. Numbers already held by a seller are often listed with a pattern at a one-time price. You then transfer one to a provider for your service.
Providers ranked by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers with local numbers listed
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
We may receive a referral fee from certain sellers and providers. The ranking remains based on first-year cost and is never affected by this. How we earn
Places in the 203 area code
For 203, NANPA lists 32 rate centres. Every rate centre is a local calling area where numbers are assigned:
Woodbury, Wolcott, Wilton, Westport, Waterbury, Wallingford, Trumbull, Stamford, Seymour, Ridgefield, Redding, Old Greenwich, Norwalk, Newtown, New Haven, New Canaan, Naugatuck, Milford, Meriden, Madison, Huntington, Guilford, Greenwich, Georgetown, Fairfield, Darien, Danbury, Cheshire, Byram, Bridgeport, Branford, Ansonia-derby.
Other related area codes
This area shares a number pool with 475. Any of these codes may supply a new number in this area, so request the one you prefer.
203 area code questions
What area does 203 cover?
203 serves Bridgeport, Connecticut, and the area around Bridgeport-Stamford-Norwalk, CT.
Which country code does a 203 number use?
+1. The North American Numbering Plan includes 203. From abroad, dial +1 203 followed by the 7-digit number.
What time is it in the 203 area code?
The 203 area uses Eastern time.
Who uses a 203 number to call?
Anyone with a number in this code can call, including homes, mobiles, local businesses and callers who fake a local number. Seeing a 203 number on your screen shows where it was assigned, not the identity of the caller.