CLACKAMAS — OR
Data last updated: October 30, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| QWEST CORPORATION | 9638 | 24 |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | 9 |
| T-MOBILE USA, INC. | 6529 | 8 |
| ONVOY, LLC - OR | 750E | 5 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - OR | 7531 | 5 |