Area Code 909-374 located in RIVERSIDE, RIVERSIDE, CA, more detail is as below. Place NPA (Numbering Plan Area) : 909 NXX (Local Number Prefix) : 374 City : RIVERSIDE County : RIVERSIDE State : CA (California) NXX Use Type : Wireless NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 06065 LATA (Local Access Transport Area) : 730 Rate Center : POMONA ZIP Code Count : 1 ZIP Code Frequency : 33 ZIP Code : 92506 Other Information NPANXX : 909374 Switch CLLI (Common Language Location Identifier) : CYCMCALLCM5 MSA CBSA (Core Based Statistical Area) : Riverside-San Bernardino-Ontario, CA MSA CBSA Code (Core Based Statistical Area) : 40140 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 : POMONA Latitude : 34.0600 Longitude : -117.7569 ‹ previous : 909-374 next › : 909-374 Telephone Number List 909-374-0000 ~ 909-374-9999