Area Code 831-210 located in MONTEREY, MONTEREY, CA, more detail is as below. Place NPA (Numbering Plan Area) : 831 NXX (Local Number Prefix) : 210 City : MONTEREY County : MONTEREY State : CA (California) NXX Use Type : Wireless NXX Intro Version : 2001-10-31 FIPS (Federal Information Processing Standards) : 06053 LATA (Local Access Transport Area) : 736 Rate Center : SALINAS ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 93940 Other Information NPANXX : 831210 Switch CLLI (Common Language Location Identifier) : SLNSCA01X4X MSA CBSA (Core Based Statistical Area) : Salinas, CA MSA CBSA Code (Core Based Statistical Area) : 41500 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : T-MOBILE USA, INC. OCN (Operating Company Number) : 6529 Coverage Area Name : MONTEREY Latitude : 36.6002 Longitude : -121.8923 ‹ previous : 831-207 next › : 831-212 Telephone Number List 831-210-0000 ~ 831-210-9999