Area Code 503-668 located in SANDY, CLACKAMAS, OR, more detail is as below. Place NPA (Numbering Plan Area) : 503 NXX (Local Number Prefix) : 668 City : SANDY County : CLACKAMAS State : OR (Oregon) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 41005 LATA (Local Access Transport Area) : 672 Rate Center : STFRD-SNDY ZIP Code Count : 3512 ZIP Code Frequency : 85 ZIP Code : 97055 Other Information NPANXX : 503668 Switch CLLI (Common Language Location Identifier) : SNDYORXADS2 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 : FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR OCN (Operating Company Number) : 4323 Coverage Area Name : TUALATIN Latitude : 45.3436 Longitude : -122.7127 ‹ previous : 503-668 next › : 503-669 Telephone Number List 503-668-0000 ~ 503-668-9999