KENNEWICK — WA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4324 | 11 |
| T-MOBILE USA, INC. | 6529 | 8 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | 4 |
| UNITED STATES CELLULAR - WA | 6270 | 4 |
| ONVOY, LLC - WA | 483E | 3 |