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East Haven, CT Area Codes
East Haven, Connecticut (population 27,729) uses area codes 203 and 475.
East Haven has no telephone exchange of its own in NANPA records; it is served by the Branford Center exchange about 4 km away.
Carriers with East Haven numbers
15 prefixes are assigned to the Branford Center exchange: 0% mobile, 53% VoIP and cable, 47% landline.
| Carrier | Prefixes |
|---|---|
| Frontier | 5 |
| Comcast (Xfinity) | 3 |
| Onvoy (Sinch) | 2 |
| Paetec Itel | 1 |
| AT&T (Teleport) | 1 |
| Bandwidth | 1 |
| Telnyx | 1 |
| Ton80 Communications | 1 |
Area codes used in East Haven
| Area code | Prefixes serving East Haven | Main carriers in this code |
|---|---|---|
| 203 | 10 | Frontier, Verizon Wireless, AT&T Mobility |
| 475 | 5 | Onvoy (Sinch), Verizon Wireless, T-Mobile |
East Haven phone number prefixes
Numbers starting with these first six digits were originally assigned to the Branford Center exchange.
203-208Comcast (Xfinity)203-315Frontier203-433Comcast (Xfinity)203-481Frontier203-483Frontier203-484Frontier203-488Frontier203-643Paetec Itel203-646Onvoy (Sinch)203-871AT&T (Teleport)475-221Bandwidth475-286Telnyx475-338Comcast (Xfinity)475-358Onvoy (Sinch)475-382Ton80 Communications
Nearby cities in area code 203
- Bridgeport
- Stamford
- New Haven
- Waterbury
- Norwalk
- Danbury
- Meriden
- West Haven
- Milford
- Shelton
- Naugatuck
- North Haven
Questions
- What is the area code for East Haven, CT?
- East Haven uses 2 area codes: 203 and 475. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is East Haven in?
- East Haven is in the Eastern time zone.