BRANFORD — CT
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | 9147 | 5 |
| COMCAST IP PHONE, LLC | 318J | 3 |
| ONVOY, LLC - CT | 639C | 2 |
| TELNYX LLC | 073H | 1 |
| BANDWIDTH.COM CLEC, LLC - CT | 199F | 1 |