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Area Code 510

 The service area of area code 510 is in California. It covers most of the Bay Area cities in Alameda County and parts of Contra Costa County. The larger population centres covered in this area code include:


  • Fremont

  • Berkeley

  • Oakland

  • Richmond

  • Union City

  • Alameda

  • Castro Valley

  • Crockett

  • Pinole

  • Rodeo

  • El Cerrito

  • El Sobrante

  • Hayward

  • Newark

  • San Leandro

 Search Unlisted Phone Numbers & Cellular Phone Numbers! Do you need to research or reverse search an area code 510 landline or cell phone number? Click Here for a Powerful Reverse Search Tool.

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