Area Code 509-486 located in TONASKET, OKANOGAN, WA, more detail is as below. Place NPA (Numbering Plan Area) : 509 NXX (Local Number Prefix) : 486 City : TONASKET 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 : TONASKET ZIP Code Count : 1752 ZIP Code Frequency : 96 ZIP Code : 98855 Other Information NPANXX : 509486 Switch CLLI (Common Language Location Identifier) : TNSKWAXADS0 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : FRONTIER COMMUNICATIONS NORTHWEST INC. - WA OCN (Operating Company Number) : 4423 Coverage Area Name : TONASKET Latitude : 48.7032 Longitude : -119.4450 ‹ previous : 509-486 next › : 509-487 Telephone Number List 509-486-0000 ~ 509-486-9999