Area Code 509-476 located in OROVILLE, OKANOGAN, WA, more detail is as below. Place NPA (Numbering Plan Area) : 509 NXX (Local Number Prefix) : 476 City : OROVILLE County : OKANOGAN State : WA (Washington) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 53047 LATA (Local Access Transport Area) : 676 Rate Center : OROVILLE ZIP Code Count : 1462 ZIP Code Frequency : 98 ZIP Code : 98844 Other Information NPANXX : 509476 Switch CLLI (Common Language Location Identifier) : ORVLWA01DS0 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : QWEST CORPORATION OCN (Operating Company Number) : 9638 Coverage Area Name : OROVILLE Latitude : 48.9355 Longitude : -119.4310 ‹ previous : 509-475 next › : 509-477 Telephone Number List 509-476-0000 ~ 509-476-9999