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Phone Directory 510-400 Detail

State Major City Time Zone
California San Jose Pacific

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Example: (510) 400-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
510-400 Fremont, CA Xo California Alameda Landline 02/27/1999

Other Series For Prefixes

510-4000###
510-4001###
510-4002###
510-4003###
510-4004###
510-4005###
510-4006###
510-4007###
510-4008###
510-4009###