| General Information for Area Code 203 | |
|---|---|
| Country | United States |
| State/Province | Connecticut |
| Major City | New Haven |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 203-404 | New Haven | New Haven | Landline |
| 203-405 | Woodbury | Litchfield | Landline |
| 203-406 | Stamford | Fairfield | Landline |
| 203-407 | New Haven | New Haven | Landline |
| 203-408 | Redding | Fairfield | Landline |
| 203-409 | Old Greenwich | Fairfield | Landline |
| 203-410 | New Haven | New Haven | Cell Number |
| 203-412 | New Haven | New Haven | Cell Number |
| 203-413 | Greenwich | Fairfield | Landline |
| 203-414 | Bridgeport | Fairfield | Cell Number |
| 203-415 | New Haven | New Haven | Cell Number |
| 203-416 | Bridgeport | Fairfield | Landline |
| 203-417 | Danbury | Fairfield | Cell Number |
| 203-418 | Fairfield | Fairfield | Landline |
| 203-419 | Waterbury | New Haven | Landline |
| 203-420 | Meriden | New Haven | Landline |
| 203-421 | Madison | New Haven | Landline |
| 203-422 | Greenwich | Fairfield | Landline |
| 203-423 | Wilton | Fairfield | Landline |
| 203-424 | Danbury | Fairfield | Cell Number |