Area Code 408-209 located in SAN MATEO, SAN MATEO, CA, more detail is as below. Place NPA (Numbering Plan Area) : 408 NXX (Local Number Prefix) : 209 City : SAN MATEO 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 : SNJS NORTH ZIP Code Count : 1 ZIP Code Frequency : 33 ZIP Code : 94403 Other Information NPANXX : 408209 Switch CLLI (Common Language Location Identifier) : SNTCCACSCM2 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 : CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA OCN (Operating Company Number) : 6006 Coverage Area Name : MILPITAS Latitude : 37.4346 Longitude : -121.9091 ‹ previous : 408-209 next › : 408-210 Telephone Number List 408-209-0000 ~ 408-209-9999