Area Code 503-575 located in PORTLAND, MULTNOMAH, OR, more detail is as below. Place NPA (Numbering Plan Area) : 503 NXX (Local Number Prefix) : 575 City : PORTLAND County : MULTNOMAH State : OR (Oregon) NXX Use Type : Wireless NXX Intro Version : 1998-01-25 FIPS (Federal Information Processing Standards) : 41051 LATA (Local Access Transport Area) : 672 Rate Center : PORTLAND ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 97205 Other Information NPANXX : 503575 Switch CLLI (Common Language Location Identifier) : PTLDOR69DS2 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 : XO OREGON, INC. OCN (Operating Company Number) : 4980 Coverage Area Name : PORTLAND Latitude : 45.4523 Longitude : -122.7873 ‹ previous : 503-574 next › : 503-576 Telephone Number List 503-575-0000 ~ 503-575-9999