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Phone Directory 510-857 Detail

State Major City Time Zone
California San Jose Pacific

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Example: (510) 857-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
510-857 Fremont, CA Allegiance Telecom Alameda Landline 06/13/2000

Other Series For Prefixes

510-8570###
510-8571###
510-8572###
510-8573###
510-8574###
510-8575###
510-8576###
510-8577###
510-8578###
510-8579###