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Phone Directory 510-342 Detail

State Major City Time Zone
California San Jose Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
510-342 Hayward, CA Mpower Communications Corp Alameda Landline 10/11/1997

Other Series For Prefixes

510-3420###
510-3421###
510-3422###
510-3423###
510-3424###
510-3425###
510-3426###
510-3427###
510-3428###
510-3429###