Area Code 805-203 located in CAMBRIA, SAN LUIS OBISPO, CA, more detail is as below. Place NPA (Numbering Plan Area) : 805 NXX (Local Number Prefix) : 203 City : CAMBRIA County : SAN LUIS OBISPO State : CA (California) NXX Use Type : Landline NXX Intro Version : 2000-01-14 FIPS (Federal Information Processing Standards) : 06079 LATA (Local Access Transport Area) : 740 Rate Center : CAMBRIA ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 93428 Other Information NPANXX : 805203 Switch CLLI (Common Language Location Identifier) : SNLOCA01X8X MSA CBSA (Core Based Statistical Area) : San Luis Obispo-Paso Robles, CA MSA CBSA Code (Core Based Statistical Area) : 42020 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : O1 COMMUNICATIONS, INC. - CA OCN (Operating Company Number) : 4129 Coverage Area Name : CAMBRIA Latitude : 35.5644 Longitude : -121.0835 ‹ previous : 805-202 next › : 805-204 Telephone Number List 805-203-0000 ~ 805-203-9999