| General Information about Area Code 203 | |
|---|---|
| Country | United States |
| State / Province / Territory | Connecticut |
| Major City | New Haven |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 203-694 | Meriden | New Haven | Landline |
| 203-225 | Shelton | Fairfield | Landline |
| 203-460 | Danbury | Fairfield | Landline |
| 203-626 | New Haven | New Haven | Landline |
| 203-975 | Stamford | Fairfield | Landline |
| 203-430 | New Haven | New Haven | Wireless |
| 203-546 | Danbury | Fairfield | Landline |
| 203-559 | Darien | Fairfield | Landline |
| 203-459 | Trumbull | Fairfield | Landline |
| 203-805 | Waterbury | New Haven | Landline |
| 203-277 | Old Greenwich | Fairfield | Landline |
| 203-960 | Stamford | Fairfield | Landline |
| 203-575 | Waterbury | New Haven | Landline |
| 203-966 | New Canaan | Fairfield | Landline |
| 203-499 | New Haven | New Haven | Landline |
| 203-542 | Greenwich | Fairfield | Landline |
| 203-928 | New Haven | New Haven | Landline |
| 203-865 | New Haven | New Haven | Landline |
| 203-720 | Naugatuck | New Haven | Landline |
| 203-342 | Bridgeport | Fairfield | Wireless |