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Phone Directory 925-640 Detail

State Major City Time Zone
California Oakland Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
925-640 San Ramon, CA New Cingular Wireless PCS Contra Costa Cell Number 02/27/1999

Other Series For Prefixes

925-6400###
925-6401###
925-6402###
925-6403###
925-6404###
925-6405###
925-6406###
925-6407###
925-6408###
925-6409###