RICHLAND — WA
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 4324 | 9 |
| ONVOY, LLC - WA | 483E | 2 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | 2 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - WA | 6121 | 1 |