Area Code 925

Area Code 925 is in California

Other California Area Codes
209, 213, 279, 310, 323, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 747, 760, 805, 818, 831, 858, 909, 916, 925, 949, 951

California Area Code Overlays
(310 and 424) - (415 and 628)
(408 and 669) - (714 and 657)
(760 and 442) - (818 and 747)

Area Code 925 History:

03/14/1998
Area code 925 was put into service. Area code 925 was created from a split of area code 510.

Counties in California within area code 925 include:

Alameda County, and Contra Costa County.

Major cities or places in California within area code 925 include:

Area code 925 serves portions of the East Bay region in Almeda and Contra Costa counties, including the larger cities and communities of Antioch, Bay Point, Brentwood, Concord, Danville, Dublin, Lafayette, Livermore, Martinez, Oakley, Pittsburg, Pleasant Hill, Pleasanton, San Ramon, and Walnut Creek in addition to many smaller communities within the area code 925 service area.

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