CORVALLIS — OR
Data last updated: August 31, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| QWEST CORPORATION | 9638 | 14 |
| T-MOBILE USA, INC. | 6529 | 4 |
| LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | 3 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | 2 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 2 |