| 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 |
|---|---|---|---|
| 203-302 | Fairfield | Landline | Active |
| 203-303 | New Haven | Landline | Active |
| 203-304 | Fairfield | Landline | Active |
| 203-305 | New Haven | Cell Number | Active |
| 203-306 | New Haven | Landline | Active |
| 203-307 | Fairfield | Landline | Active |
| 203-308 | New Haven | Cell Number | Active |
| 203-309 | New Haven | Cell Number | Active |
| 203-310 | Fairfield | Landline | Active |
| 203-312 | Fairfield | Landline | Active |
| 203-313 | Fairfield | Cell Number | Active |
| 203-314 | New Haven | Cell Number | Active |
| 203-315 | New Haven | Landline | Active |
| 203-316 | Fairfield | Landline | Active |
| 203-317 | New Haven | Landline | Active |
| 203-318 | New Haven | Landline | Active |
| 203-319 | Fairfield | Landline | Active |
| 203-320 | Fairfield | Landline | Active |
| 203-321 | Fairfield | Landline | Active |
| 203-322 | Fairfield | Landline | Active |