COLUMBIFLS — MT
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK | 2249 | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK | 2249 | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 6564 | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |