THE DALLES — OR
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR | 4520 | 3 |
| LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | 2 |
| METROPCS, INC. | 5562 | 2 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 2 |
| UNITED STATES CELLULAR - OR | 6349 | 2 |