| 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 |
|---|---|---|---|
| 203-424 | Fairfield | Cell Number | Active |
| 203-425 | Fairfield | Landline | Active |
| 203-426 | Fairfield | Landline | Active |
| 203-427 | New Haven | Landline | Active |
| 203-428 | Fairfield | Landline | Active |
| 203-429 | Fairfield | Landline | Active |
| 203-430 | New Haven | Cell Number | Active |
| 203-431 | Fairfield | Landline | Active |
| 203-432 | New Haven | Landline | Active |
| 203-433 | New Haven | Landline | Active |
| 203-434 | Fairfield | Cell Number | Active |
| 203-435 | New Haven | Cell Number | Active |
| 203-436 | New Haven | Landline | Active |
| 203-437 | New Haven | Landline | Active |
| 203-438 | Fairfield | Landline | Active |
| 203-439 | New Haven | Landline | Active |
| 203-440 | New Haven | Landline | Active |
| 203-441 | New Haven | Landline | Active |
| 203-442 | Fairfield | Landline | Active |
| 203-443 | New Haven | Landline | Active |