Area Code 510-200 located in HAYWARD, ALAMEDA, CA, more detail is as below. Place NPA (Numbering Plan Area) : 510 NXX (Local Number Prefix) : 200 City : HAYWARD County : ALAMEDA State : CA (California) NXX Use Type : Wireless NXX Intro Version : 11/12/2008 FIPS (Federal Information Processing Standards) : 06001 LATA (Local Access Transport Area) : 722 Rate Center : HAYWARD ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 94542 Other Information NPANXX : 510200 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 : METRO PCS, INC. OCN (Operating Company Number) : 5562 Coverage Area Name : HAYWARD Latitude : 37.6682 Longitude : -122.0796 ‹ previous : 509-999 next › : 510-201 Telephone Number List 510-200-0000 ~ 510-200-9999