BELFAST — TN
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| UNITED TELEPHONE COMPANY DBA UNITED COMMUNICATIONS | 0581 | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| UNITED TELEPHONE COMPANY DBA UNITED COMMUNICATIONS | 0581 | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |