Area Code 925

Country United States
State/Province California 
Major City Concord 
Easy URL 

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925 Area Code is an area code finder with detailed information on the 925 area code including 925 area code map.

Major cities like Antioch within area code 925 are also listed on this page. More area codes, including those outside of California, are found on the homepage.

Some telephone area codes are overlaid, requiring 10-digit dialing. is your one-stop site for area code lookup, area code search, and area code locator.

Area Code 925 Detail

Area code 925 covers the East Bay counties of Alameda and Contra Costa, California. Area code 925 was created in 1998.

925 Area Code Location
Major Cities County State/Province
Antioch  Contra Costa  CA 
Concord  Contra Costa  CA 
Livermore  Alameda  CA 
Pittsburg  Contra Costa  CA 
Pleasanton  Alameda  CA 
Walnut Creek  Contra Costa  CA 
Other Cities By Name
Bishop Ranch  Contra Costa  CA 
Clayton  Contra Costa  CA 
Danville  Contra Costa  CA 
Dublin  Alameda  CA 
Lafayette  Contra Costa  CA 
Martinez  Contra Costa  CA 
Moraga  Contra Costa  CA 
Orinda  Contra Costa  CA 
Sunol  Alameda  CA 

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