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Phone Directory 925-431 Detail

State Major City Time Zone
California Oakland Pacific

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Example: (925) 431-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
925-431 Pittsburg, CA Pacific Bell Contra Costa Landline 05/18/1998

Other Series For Prefixes

925-4310###
925-4311###
925-4312###
925-4313###
925-4314###
925-4315###
925-4316###
925-4317###
925-4318###
925-4319###