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Phone Directory 925-478 Detail

State Major City Time Zone
California Oakland Pacific

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Example: (925) 478-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
925-478 Walnut Creek, CA Level 3 Communications Contra Costa Landline 02/27/1999

Other Series For Prefixes

925-4780###
925-4781###
925-4782###
925-4783###
925-4784###
925-4785###
925-4786###
925-4787###
925-4788###
925-4789###