TILLAMOOK — OR
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| T-MOBILE USA, INC. | 6529 | 8 |
| LEVEL 3 COMMUNICATIONS, LLC - OR | 3234 | 2 |
| UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR | 4520 | 2 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | 2 |
| ONVOY, LLC - OR | 750E | 2 |