Area code 925

Area code 925 is a telephone area code in the state of California in the United States. It serves the eastern part of the San Francisco Bay Area, including cities like Walnut Creek, Concord, Pleasanton, and Livermore. It was created on March 14, 1998, when it was split from area code 510. It covers inland regions of the East Bay such as Livermore, Concord, Pleasant Hill, Walnut Creek, Martinez, Pleasanton, and Dublin.

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