Area Code 510-263 located in ALAMEDA, ALAMEDA, CA, more detail is as below. Place NPA (Numbering Plan Area) : 510 NXX (Local Number Prefix) : 263 City : ALAMEDA 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 : OKLD ALMD ZIP Code Count : 13 ZIP Code Frequency : 12 ZIP Code : 94502 Other Information NPANXX : 510263 Switch CLLI (Common Language Location Identifier) : ALMDCA11DS0 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 : ALAMEDA Latitude : 37.7682 Longitude : -122.2458 ‹ previous : 510-263 next › : 510-263 Telephone Number List 510-263-0000 ~ 510-263-9999