• About area code 510

The 510 area code is the dialing code covering Oakland and its surrounding suburbs. The 510 area code was originally created in 1992 after splitting from the 415 area code. The 415 area code was one of the original four area codes comprising California's dialing map. In 1991, the 510 area code was created to cover the Bay Area going into permanent effect on January 27, 1992.

• 510 Counties

The 510 area code covers the entirety of Alameda County and the bay area as well as a small portion of Contra Costa County.

• 510 Cities

Centralized around Oakland, the 510 area code provides coverage to all of the other major bay area cities and suburbs, including Albany, Alameda, Berkeley, Castro Valley, Crockett, El Cerrito, El Sobrante, Emeryville, Fremont, Hayward, Hercules, Newark, Oakland, Piedmont, Pinole, Richmond, Rodeo, San Lenadro, San Lorenzo, San Pablo, and Union City.



 

1. Additional information on 510 area code:

• Area code 510 - Wikipedia, the free encyclopedia

• Toll free area codes
   

• Google Maps for 510
  

Full list of 510 Countries & Regions

 Full list of 510 Countries & Regions

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