Area Code 925-201 located in PLEASANTON, ALAMEDA, CA, more detail is as below. Place NPA (Numbering Plan Area) : 925 NXX (Local Number Prefix) : 201 City : PLEASANTON County : ALAMEDA State : CA (California) NXX Use Type : Landline NXX Intro Version : 1998-05-18 FIPS (Federal Information Processing Standards) : 06001 LATA (Local Access Transport Area) : 722 Rate Center : PLEASANTON ZIP Code Count : 2 ZIP Code Frequency : 67 ZIP Code : 94588 Other Information NPANXX : 925201 Switch CLLI (Common Language Location Identifier) : SNJUCA10DS0 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 : MPOWER COMMUNICATIONS CORP - CA OCN (Operating Company Number) : 8322 Coverage Area Name : PLEASANTON Latitude : 37.6566 Longitude : -121.8828 ‹ previous : 925-201 next › : 925-202 Telephone Number List 925-201-0000 ~ 925-201-9999