GRESHAM — OR
Data last updated: October 30, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4323 | 12 |
| BANDWIDTH.COM CLEC, LLC - OR | 076F | 3 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 3 |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | 3 |
| ONVOY, LLC - OR | 750E | 2 |