GLEN ULLIN — ND
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| WEST RIVER TELECOMMUNICATIONS COOP. - ND | 4413 | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - ND | 8054 | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| WEST RIVER TELECOMMUNICATIONS COOP. - ND | 4413 | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - ND | 8054 | 1 |