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Phone Directory 510-840 Detail

State Major City Time Zone
California San Jose Pacific

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
510-840 Oakland, CA American Messaging (am) Alameda Cell Number 02/04/1994

Other Series For Prefixes

510-8400###
510-8401###
510-8402###
510-8403###
510-8404###
510-8405###
510-8406###
510-8407###
510-8408###
510-8409###