Area code 203 covers Bridgeport and surrounding areas in Connecticut. It is one of the original 86 area codes established by AT&T in 1947. Today it shares its territory with overlay code 475. For the full picture, see all Connecticut area codes.
| State | Connecticut |
|---|---|
| Primary city | Bridgeport |
| Cities also served | Bridgeport, New Haven, Stamford, Waterbury, Norwalk, Danbury, Meriden, Shelton |
| Time zone | Eastern (UTC-5 / UTC-4 DST) |
| Year established | 1947 |
| Original 1947 NPA? | Yes |
| Overlay codes | 475 |
| Currently in use? | Yes, actively assigned |
| Ten-digit dialing required? | Yes |
Cities Served by Area Code 203
Area code 203 serves Southwestern Connecticut — Fairfield County (except Sherman), all of New Haven County, and parts of Litchfield County, including the following cities and communities:
- Bridgeport
- New Haven
- Stamford
- Waterbury
- Norwalk
- Danbury
- Meriden
- Shelton
Nearby area codes covering the same broader region include: 860, 959, 475.
How to Get a 203 Phone Number
There are three ways to get a phone number with the 203 area code, each suited to a different need:
- Buy from a premium-number specialist. Companies that hold curated inventories of specific area codes can sell you a 203 number directly, often with a one-time fee and ownership transferred to you (no recurring carrier fees). This is the option for picking a specific memorable number, or for getting an area code that most carriers won’t let you request. Contact us about a 203 number.
- Sign up with a VoIP carrier. Voice-over-IP services (such as Google Voice, OpenPhone, Grasshopper, and many others) can typically provision a 203 number on request, especially for active overlay codes. You won’t usually get to pick the specific number, but you’ll get a working line in the area code. This is the cheapest option for anyone who doesn’t need a particular number.
- Port an existing 203 number. If you already have a 203 phone number with another carrier, you can transfer it (port it) to a new service provider while keeping the number. This works for landlines, cell phones, and VoIP services, though landlines outside of Connecticut sometimes can’t accept inbound ports of 203 numbers due to 911 routing rules.
212areacode.com specializes in Manhattan 212 numbers and select premium area codes. We don’t currently maintain a 203 inventory, but we may be able to source a 203 number through our carrier relationships. Contact us with your requirements and we’ll let you know what’s available.
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Browse 212 Numbers →Frequently Asked Questions
Is the 203 area code still in use?
Yes. 203 is actively assigned to new phone lines in Southwestern Connecticut — Fairfield County (except Sherman), all of New Haven County, and parts of Litchfield County.
What is the difference between 203 and 475?
Today they share the same geographic territory in Connecticut. New phone lines in the area may be assigned either code. The two codes work identically for calling, billing, and service.
Can I get a 203 number if I don't live in Connecticut?
Yes. Phone numbers are no longer tied to a physical address. With VoIP service or a number broker, you can hold a 203 number from anywhere in the world. The number routes to whatever device or carrier you specify.
Is 203 a scam area code?
No. 203 is a legitimate, active area code for Southwestern Connecticut — Fairfield County (except Sherman), all of New Haven County, and parts of Litchfield County. Like any area code, scammers occasionally spoof 203 caller IDs, but the code itself is heavily used by real Connecticut businesses, government offices, and residents.
