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Phone Directory 925-543 Detail

State Major City Time Zone
California Oakland Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
925-543 San Ramon, CA Pacific Bell Contra Costa Landline 05/18/1998

Other Series For Prefixes

925-5430###
925-5431###
925-5432###
925-5433###
925-5434###
925-5435###
925-5436###
925-5437###
925-5438###
925-5439###