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Phone Directory 925-404 Detail

State Major City Time Zone
California Oakland Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
925-404 San Ramon, CA Allegiance Telecom Contra Costa Landline 07/22/1999

Other Series For Prefixes

925-4040###
925-4041###
925-4042###
925-4043###
925-4044###
925-4045###
925-4046###
925-4047###
925-4048###
925-4049###