| Area Code 203 Details | |
|---|---|
| Country | United States |
| State/Province | Connecticut |
| Major City | New Haven |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Phone Type | Status |
|---|---|---|---|
| 203-729 | New Haven | Landline | Active |
| 203-730 | Fairfield | Landline | Active |
| 203-731 | Fairfield | Landline | Active |
| 203-732 | New Haven | Landline | Active |
| 203-733 | Fairfield | Cell Number | Active |
| 203-734 | New Haven | Landline | Active |
| 203-735 | New Haven | Landline | Active |
| 203-736 | New Haven | Landline | Active |
| 203-737 | New Haven | Landline | Active |
| 203-738 | New Haven | Landline | Active |
| 203-739 | Fairfield | Landline | Active |
| 203-740 | Fairfield | Landline | Active |
| 203-741 | New Haven | Landline | Active |
| 203-742 | Fairfield | Landline | Active |
| 203-743 | Fairfield | Landline | Active |
| 203-744 | Fairfield | Landline | Active |
| 203-745 | New Haven | Landline | Active |
| 203-746 | Fairfield | Landline | Active |
| 203-747 | New Haven | Landline | Active |
| 203-748 | Fairfield | Landline | Active |