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Phone Directory 909-378 Detail

State Major City Time Zone
California Riverside Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
909-378 Diamond Bar, CA Mci Worldcom Communications, Ca Los Angeles Landline 07/31/2013

Other Series For Prefixes

909-3780###
909-3781###
909-3782###
909-3783###
909-3784###
909-3785###
909-3786###
909-3787###
909-3788###
909-3789###