GRANITEFLS — MN
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CENTURYLINK OF MINNESOTA, INC. | 1456 | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - MN | 5256 | 2 |
| ONVOY, LLC - MN | 184D | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 1 |
| MCC TELEPHONY OF MINNESOTA, LLC - MN | 719F | 1 |