Area Code 858-201 located in SAN DIEGO, SAN DIEGO, CA, more detail is as below. Place NPA (Numbering Plan Area) : 858 NXX (Local Number Prefix) : 201 City : SAN DIEGO County : SAN DIEGO State : CA (California) NXX Use Type : Landline NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 06073 LATA (Local Access Transport Area) : 732 Rate Center : SNDG MRMS ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 92108 Other Information NPANXX : 858201 Switch CLLI (Common Language Location Identifier) : SNDACAGLDS0 MSA CBSA (Core Based Statistical Area) : San Diego-Carlsbad-San Marcos, CA MSA CBSA Code (Core Based Statistical Area) : 41740 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : LEVEL 3 COMMUNICATIONS, LLC - CA OCN (Operating Company Number) : 8826 Coverage Area Name : SAN DIEGO Latitude : 32.8084 Longitude : -117.1335 ‹ previous : 858-200 next › : 858-201 Telephone Number List 858-201-0000 ~ 858-201-9999