HAYS — MT
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| TRIANGLE TEL. COOP. ASSN., INC. | 2257 | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| TRIANGLE TEL. COOP. ASSN., INC. | 2257 | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | 1 |