HARDIN — MT
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| PROJECT TEL. CO., INC. | 2250 | 1 |
| SAGEBRUSH CELLULAR, INC. | 443B | 1 |
| ONVOY, LLC - MT | 453F | 1 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 1 |
| NUSO, LLC | 732J | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| PROJECT TEL. CO., INC. | 2250 | 1 |
| SAGEBRUSH CELLULAR, INC. | 443B | 1 |
| ONVOY, LLC - MT | 453F | 1 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 1 |
| NUSO, LLC | 732J | 1 |