Area Code 818-203 located in GLENDALE, LOS ANGELES, CA, more detail is as below. Place NPA (Numbering Plan Area) : 818 NXX (Local Number Prefix) : 203 City : GLENDALE County : LOS ANGELES State : CA (California) NXX Use Type : Wireless NXX Intro Version : 1995-02-11 FIPS (Federal Information Processing Standards) : 06037 LATA (Local Access Transport Area) : 730 Rate Center : VAN NUYS ZIP Code Count : 1 ZIP Code Frequency : 50 ZIP Code : 91203 Other Information NPANXX : 818203 Switch CLLI (Common Language Location Identifier) : CYCMCALLCM5 MSA CBSA (Core Based Statistical Area) : Los Angeles-Long Beach-Santa Ana, CA MSA CBSA Code (Core Based Statistical Area) : 31100 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC OCN (Operating Company Number) : 6010 Coverage Area Name : VAN NUYS Latitude : 34.1504 Longitude : -118.4591 ‹ previous : 818-203 next › : 818-204 Telephone Number List 818-203-0000 ~ 818-203-9999