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Phone Directory 510-223 Detail

State Major City Time Zone
California San Jose Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
510-223 El Sobrante, CA Pacific Bell Contra Costa Landline 02/04/1994

Other Series For Prefixes

510-2230###
510-2231###
510-2232###
510-2233###
510-2234###
510-2235###
510-2236###
510-2237###
510-2238###
510-2239###