KLAMATHFLS — OR
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| QWEST CORPORATION | 9638 | 8 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | 5 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 3 |
| UNITED STATES CELLULAR - OR | 6349 | 3 |
| LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | 2 |