Area Code 408-743 located in FREMONT, ALAMEDA, CA, more detail is as below. Place NPA (Numbering Plan Area) : 408 NXX (Local Number Prefix) : 743 City : FREMONT County : ALAMEDA State : CA (California) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 06001 LATA (Local Access Transport Area) : 722 Rate Center : SUNNYVALE ZIP Code Count : 1 ZIP Code Frequency : 4 ZIP Code : 94538 Other Information NPANXX : 408743 Switch CLLI (Common Language Location Identifier) : SNVACA11DS0 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 : PACIFIC BELL OCN (Operating Company Number) : 9740 Coverage Area Name : SUNNYVALE Latitude : 37.4073 Longitude : -122.0230 ‹ previous : 408-743 next › : 408-743 Telephone Number List 408-743-0000 ~ 408-743-9999