WILLISTON — ND
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND | 6568 | 4 |
| NCC ENTERPRISES | 587A | 3 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 2 |
| SAGEBRUSH CELLULAR, INC. | 443B | 1 |
| ONVOY, LLC - ND | 452F | 1 |