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California Area Code Information California Area Codes 209 - 213 - 310 - 323 - 408 - 415 - 424 - 442 510 - 530 -  559 - 562 - 619 - 626 - 650 - 657 661 - 707 - 714 - 747 - 760 - 805 - 818 - 831 858 - 909 - 916 - 925 - 949 - 951 California Area Code Overlays (424 and 310) - (657 and 714) (747 and 818) - (442 and 760) Definitions Area Code Overlay - Area Code Split California is currently using twenty-seven area codes four of which were created as area code overlays. California currently has an additional seven area codes which are assigned to provide numbering relief but are not yet in service. California originally had three area codes, 213, 415, and 916 when the numbering system was established in 1947. By 1951, just four years later, California experienced sufficient growth in population and telephone use to need an additional area code. To meet this increase in demand area code 213 was split in 1951 to form area code 714. During the 1950's California introduced five new area codes. Throughout the 1960s and the 1970s no new area codes were introduced. Two area codes were put into service in the 1980s and from 1991-1997 California put fifteen area codes into service. All fifteen were the result of area code splits. Between 2004 and 2009 five new area codes were introduced of which four are area code overlays. Changes and History of California Area Codes: 01/01/1947 Area code 213 was put into service. In 1951 area code 213 was split to form area code 714. In 1957 area code 213 was split to form area code 805. In 1984 area code 213 was split to form area code 818. In 1991 area code 213 was split to form area code 310. In 1998 area code 213 was split to form area code 323. 01/01/1947 Area code 415 was put into service. In 1959 area code 415 was split to form area codes 408 and 707. In 1991 area code 415 was split to form area code 510. In 1997 area code 415 was split to form area code 650. 01/01/1947 Area code 916 was put into service. In 1958 area code 916 was split to form area code 209. In 1997 area code 916 was split to form area code 530. 01/01/1951 Area code 714 was put into service. Area code 714 was created from a split of area code 213. In 1982 area code 714 was split to form area code 619. In 1992 area code 714 was split to form area code 909. In 1998 area code 714 was split to form area code 949. In 1999 area code 714 was overlaid with area code 657. 01/01/1957 Area code 805 was put into service. Area code 805 was created from a split of area code 213. In 1999 area code 805 was split to form area code 661. 01/01/1958 Area code 209 was put into service. Area code 209 was created from a split of area code 916. In 1998 area code 209 was split to form area code 559. 01/01/1959 Area code 408 was put into service. Area code 408 was created from a split of area code 415. In 1998 area code 408 was split to form area code 831. 01/01/1959 Area code 707 was put into service. Area code 707 was created from a split of area code 415. 01/01/1982 Area code 619 was put into service. Area code 619 was created from a split of area code 714. In 1997 area code 619 was split to form area code 760. In 1999 area code 619 was split to form area code 858. 01/07/1984 Area code 818 was put into service. Area code 818 was created from a split of area code 213. In 1997 area code 818 was split to form area code 626. In 2009 area code 818 was overlaid with area code 747. 09/02/1991 Area code 510 was put into service. Area code 510 was created from a split of area code 415. In 1998 area code 510 was split to form area code 925. 11/02/1991 Area code 310 was put into service. Area code 310 was created from a split of area code 213. In 1997 area code 310 was split to form area code 562. In 2006 area code 310 was overlaid with area code 424. 11/14/1992 Area code 909 was put into service. Area code 909 was created from a split of area code 714. In 2004 area code 909 was split to form area code 951. 01/25/1997 Area code 562 was put into service. Area code 562 was created from a split of area code 310. 03/22/1997 Area code 760 was put into service. Area code 760 was created from a split of area code 619. In 2009 area code 760 was overlaid with area code 442. 06/14/1997 Area code 626 was put into service. Area code 626 was created from a split of area code 818. 08/02/1997 Area code 650 was put into service. Area code 650 was created from a split of area code 415. 11/01/1997 Area code 530 was put into service. Area code 530 was created from a split of area code 916. 03/14/1998 Area code 925 was put into service. Area code 925 was created from a split of area code 510. 04/18/1998 Area code 949 was put into service. Area code 949 was created from a split of area code 714. 06/13/1998 Area code 323 was put into service. Area code 323 was created from a split of area code 213. 07/11/1998 Area code 831 was put into service. Area code 831 was created from a split of area code 408. 11/14/1998 Area code 559 was put into service. Area code 559 was created from a split of area code 209. 02/13/1999 Area code 661 was put into service. Area code 661 was created from a split of area code 805. 06/12/1999 Area code 858 was put into service. Area code 858 was created from a split of area code 619. 07/17/2004 Area code 951 was put into service. Area code 951 was created from a split of area code 909. 08/26/2006 Area code 424 was put into service. Area code 424 is an overlay of area code 310. 09/23/2008 Area code 657 was put into service. Area code 657 is an overlay of area code 714. 05/18/2009 Area code 747 was put into service. Area code 747 is an overlay of area code 818. 11/21/2009 Area code 442 was put into service. Area code 442 is an overlay of area code 760. not in service Area code 341 is proposed as an overlay of area code 407 but is not yet in service not in service Area code 369 is proposed for numbering relief in area code 707 but is not yet in service not in service Area code 627 is proposed for numbering relief in area code 707 but is not yet in service not in service Area code 628 is proposed as an overlay of area code 415 but is not yet in service not in service Area code 669 is proposed as an overlay of area code 408 but is not yet in service not in service Area code 764 is proposed as an overlay of area code 650 but is not yet in service not in service Area code 935 is proposed for numbering relief in area code 619 but is not yet in service Area Codes in Other California Locations Alameda Alhambra Anaheim Antioch Arden-Arcade Bakersfield Baldwin Park Bellflower Berkeley Buena Park Burbank Carlsbad Carson Chino Chino Hills Chula Vista Citrus Heights Clovis Compton Concord Corona Costa Mesa Daly City Downey El Cajon El Monte Escondido Fairfield Fontana Fremont Fresno Fullerton Garden Grove Glendale Hawthorne Hayward Huntington Beach Inglewood Irvine Lakewood Lancaster Livermore Long Beach Los Angeles Lynwood Mission Viejo Modesto Moreno Valley Mountain View Napa Newport Beach Norwalk Oakland Oceanside Ontario Orange Oxnard Palmdale Pasadena Pomona Rancho Cucamonga Redding Redwood City Rialto Richmond Riverside Roseville Sacramento Salinas San Bernardino San Diego San Francisco San Jose San Leandro San Mateo Santa Ana Santa Barbara Santa Clara Santa Clarita Santa Maria Santa Monica Santa Rosa Simi Valley South Gate Stockton Sunnyvale Thousand Oaks Torrance Tustin Union City Upland Vacaville Vallejo Ventura Visalia Vista Walnut Creek West Covina Westminster Whittier   Area Code Look Up By State and City Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington Washington, DC West Virginia Wisconsin Wyoming Area Code Look Up in Surrounding Places American Samoa Bahamas Barbados Bermuda British Virgin Islands Dominican Republic Freeport (Bahamas) Grenada Grand Bahama Guam Jamaica Marshall Islands Nassau (Bahamas) Saint Thomas Saint Croix Saint John St. Lucia St. Vincent US Virgin Islands St. Kitts and Nevis Terms of Use - Privacy Statement www.AreaCodeHelp.com is not responsible for any damages or problems caused by this service. 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