Where Is Area Code 925

Area Code 925 is located in California. It covers 23 cities, including Oakland, Fremont, Hayward, Concord, and Antioch. It also covers 2 counties, including Contra Costa. Area code 925 serves the state of California. This area code was assigned on May 19th, 1997. On March 14th, 1998 it went into service. 925 is a General Purpose Code. Dialing. Area code 925 is located in California and includes Concord. View the 925 area code map, major cities, location, timezone and more on TeraCodes.com.

The area code 925 is located in Antioch, California. Area code 925 serves the Antioch, California region and is a vital part of the San Francisco Bay Area's telephone network. Established in. The 925 Area Code is located in the state of California. Area Code 925 is one of the 269 three-digit telephone area codes in the USA. It covers roughly 6,208,222 unique phone numbers.