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Phone Directory 925-603 Detail

State Major City Time Zone
California Oakland Pacific

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Example: (925) 603-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
925-603 Concord, CA Pacific Bell Contra Costa Landline 05/18/1998

Other Series For Prefixes

925-6030###
925-6031###
925-6032###
925-6033###
925-6034###
925-6035###
925-6036###
925-6037###
925-6038###
925-6039###