Area Code 503-440 located in SEASIDE, CLATSOP, OR, more detail is as below. Place NPA (Numbering Plan Area) : 503 NXX (Local Number Prefix) : 440 City : SEASIDE County : CLATSOP State : OR (Oregon) NXX Use Type : Wireless NXX Intro Version : 1997-04-01 FIPS (Federal Information Processing Standards) : 41007 LATA (Local Access Transport Area) : 672 Rate Center : SEASIDE ZIP Code Count : 3 ZIP Code Frequency : 75 ZIP Code : 97138 Other Information NPANXX : 503440 Switch CLLI (Common Language Location Identifier) : PTLDORQACM1 MSA CBSA (Core Based Statistical Area) : Astoria, OR MSA CBSA Code (Core Based Statistical Area) : 11820 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR OCN (Operating Company Number) : 5820 Coverage Area Name : SEASIDE Latitude : 45.9933 Longitude : -123.9264 ‹ previous : 503-440 next › : 503-441 Telephone Number List 503-440-0000 ~ 503-440-9999