HAVRE — MT
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 2 |
| QWEST CORPORATION | 9636 | 2 |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | 1 |
| TRIANGLE COMMUNICATION SYSTEM, INC. - MT- | 958H | 1 |