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Phone Directory 925-277 Detail

State Major City Time Zone
California Oakland Pacific

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Example: (925) 277-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
925-277 San Ramon, CA Pacific Bell Contra Costa Landline 05/18/1998

Other Series For Prefixes

925-2770###
925-2771###
925-2772###
925-2773###
925-2774###
925-2775###
925-2776###
925-2777###
925-2778###
925-2779###