COLCHESTER — CT
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| BANDWIDTH.COM CLEC, LLC - CT | 199F | 1 |
| COMCAST IP PHONE, LLC | 318J | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CT | 7143 | 1 |
| SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | 9147 | 1 |