NEW HAVEN — CT
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | 9147 | 72 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | 28 |
| OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | 21 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 18 |
| ONVOY, LLC - CT | 639C | 8 |