| 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 |
|---|---|---|---|
| 203-880 | Trumbull | Fairfield | Landline |
| 203-586 | Woodbury | Litchfield | Landline |
| 203-373 | Bridgeport | Fairfield | Landline |
| 203-235 | Meriden | New Haven | Landline |
| 203-952 | Norwalk | Fairfield | Wireless |
| 203-374 | Bridgeport | Fairfield | Landline |
| 203-422 | Greenwich | Fairfield | Landline |
| 203-768 | Waterbury | New Haven | Wireless |
| 203-214 | New Haven | New Haven | Wireless |
| 203-628 | Danbury | Fairfield | Landline |
| 203-827 | Old Greenwich | Fairfield | Landline |
| 203-913 | Bridgeport | Fairfield | Wireless |
| 203-291 | Westport | Fairfield | Landline |
| 203-993 | Bridgeport | Fairfield | Wireless |
| 203-437 | Waterbury | New Haven | Landline |
| 203-544 | Wilton | Fairfield | Landline |
| 203-436 | New Haven | New Haven | Landline |
| 203-785 | New Haven | New Haven | Landline |
| 203-369 | Old Greenwich | Fairfield | Landline |
| 203-757 | Waterbury | New Haven | Landline |