Area Code 408-348 located in MILLBRAE, SAN MATEO, CA, more detail is as below. Place NPA (Numbering Plan Area) : 408 NXX (Local Number Prefix) : 348 City : MILLBRAE County : SAN MATEO State : CA (California) NXX Use Type : Wireless NXX Intro Version : 1998-05-18 FIPS (Federal Information Processing Standards) : 06081 LATA (Local Access Transport Area) : 722 Rate Center : LOS GATOS ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 94030 Other Information NPANXX : 408348 Switch CLLI (Common Language Location Identifier) : SNTDCAUJCM9 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 : LOS GATOS Latitude : 37.2366 Longitude : -121.9494 ‹ previous : 408-348 next › : 408-349 Telephone Number List 408-348-0000 ~ 408-348-9999