Area Code 310-503 located in SAN CARLOS, SAN MATEO, CA, more detail is as below. Place NPA (Numbering Plan Area) : 310 NXX (Local Number Prefix) : 503 City : SAN CARLOS County : SAN MATEO State : CA (California) NXX Use Type : Wireless NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 06081 LATA (Local Access Transport Area) : 730 Rate Center : CMTN GRDN ZIP Code Count : 1 ZIP Code Frequency : 25 ZIP Code : 94070 Other Information NPANXX : 310503 County Population : 0 Switch CLLI (Common Language Location Identifier) : GRDNCAATCM4 MSA CBSA (Core Based Statistical Area) : San Francisco-Oakland-Fremont, CA MSA CBSA Code (Core Based Statistical Area) : 41860 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC OCN (Operating Company Number) : 6010 Coverage Area Name : GARDENA Latitude : 33.8832 Longitude : -118.2885 ‹ previous : 310-503 next › : 310-503 Telephone Number List 310-503-0000 ~ 310-503-9999
