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Phone Directory 510-243 Detail

State Major City Time Zone
California San Jose Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
510-243 El Sobrante, CA Pacific Bell Contra Costa Landline 02/04/1994

Other Series For Prefixes

510-2430###
510-2431###
510-2432###
510-2433###
510-2434###
510-2435###
510-2436###
510-2437###
510-2438###
510-2439###