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Phone Directory 510-491 Detail

State Major City Time Zone
California San Jose Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
510-491 Union City, CA Teleport Communications Group - San Francisco Alameda Landline 04/15/1996

Other Series For Prefixes

510-4910###
510-4911###
510-4912###
510-4913###
510-4914###
510-4915###
510-4916###
510-4917###
510-4918###
510-4919###