GRAFTON — ND
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| MIDCONTINENT COMMUNICATIONS - ND | 3065 | 1 |
| STRATUS NETWORKS | 495J | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 1 |
| QWEST CORPORATION | 9631 | 1 |
| BANDWIDTH.COM CLEC, LLC - ND | 999E | 1 |