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Cities in Area Code 510

Alameda, Albany, Berkeley, Concord, Crockett, Dublin, El Sobrante, Fremont, Hayward, Hercules, Livermore, Oakland, Pleasanton, Richmond, San Carlos, San Francisco, San Jose, San Leandro, San Rafael, Santa Clara, Santa Rosa, Sunnyvale, Union City, Walnut Creek

Metropolitan Statisitical Areas in Area Code 510

San Francisco, Oakland, Fremont

Counties in Area Code 510

Alameda, Contra Costa

States / Provinces

California

*Approximate area serviced by the 510 area code

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