Area Code 509-203 located in GRANDVIEW, YAKIMA, WA, more detail is as below. Place NPA (Numbering Plan Area) : 509 NXX (Local Number Prefix) : 203 City : GRANDVIEW County : YAKIMA State : WA (Washington) NXX Use Type : Landline NXX Intro Version : 2003-05-09 FIPS (Federal Information Processing Standards) : 53077 LATA (Local Access Transport Area) : 676 Rate Center : GRANDVIEW ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 98930 Other Information NPANXX : 509203 Switch CLLI (Common Language Location Identifier) : KNWCWAXA4MD MSA CBSA (Core Based Statistical Area) : Yakima, WA MSA CBSA Code (Core Based Statistical Area) : 49420 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : LEVEL 3 COMMUNICATIONS, LLC - WA OCN (Operating Company Number) : 6121 Coverage Area Name : GRANDVIEW Latitude : 46.2483 Longitude : -119.9016 ‹ previous : 509-202 next › : 509-204 Telephone Number List 509-203-0000 ~ 509-203-9999