Area Code 503-843 located in AMITY, YAMHILL, OR, more detail is as below. Place NPA (Numbering Plan Area) : 503 NXX (Local Number Prefix) : 843 City : AMITY County : YAMHILL State : OR (Oregon) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 41071 LATA (Local Access Transport Area) : 672 Rate Center : SHERIDAN ZIP Code Count : 60 ZIP Code Frequency : 3 ZIP Code : 97101 Other Information NPANXX : 503843 Switch CLLI (Common Language Location Identifier) : SHRDORXADS0 MSA CBSA (Core Based Statistical Area) : Portland-Vancouver-Hillsboro, OR-WA MSA CBSA Code (Core Based Statistical Area) : 38900 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : UNITED TELEPHONE-NORTHWEST-OR DBA CENTURYLINK - OR OCN (Operating Company Number) : 4520 Coverage Area Name : SHERIDAN Latitude : 45.0973 Longitude : -123.3889 ‹ previous : 503-842 next › : 503-843 Telephone Number List 503-843-0000 ~ 503-843-9999