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Phone Directory 510-274 Detail

State Major City Time Zone
California San Jose Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
510-274 Hayward, CA Utility Telephone Alameda Landline 10/13/1999

Other Series For Prefixes

510-2740###
510-2741###
510-2742###
510-2743###
510-2744###
510-2745###
510-2746###
510-2747###
510-2748###
510-2749###