(509) 231
Prefix in KENNEWICK, Washington
Prefix Details
| Area Code | 509 |
| Prefix | 231 |
| Full Number Pattern | (509) 231-XXXX |
| Rate Center | KENNEWICK |
| State | Washington |
| Operating Company | ONVOY, LLC - WA |
| Time Zone | Pacific (PT, UTC-8) |
About the (509) 231 Prefix
The (509) 231 prefix is assigned to ONVOY, LLC - WA and serves the KENNEWICK rate center in Washington. Phone numbers with this prefix are in the Pacific Time Zone and are part of area code 509 which covers Spokane and surrounding areas.