DURHAM — NH
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| PAETEC ITEL, LLC | 829J | 3 |
| COMCAST IP PHONE, LLC | 318J | 1 |
| CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | 5113 | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - NH | 8299 | 1 |
| FREEDOM RING COMMUNICATIONS, LLC | 8468 | 1 |