Categories: Area codes in the United States | Riverside County, California | Area codes in California For other uses, see State (disambiguation). ... Official language(s) English Capital Sacramento Largest city Los Angeles Largest metro area Greater Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ... The 209 area code covers Stockton, Merced, Modesto, San Andreas and the Central Valley. ... North American area code 213 is a state of California telephone area code which was one of the first three area codes created in California in October 1947. ... Area code 310 is the California telephone area code which was split from Area code 213 on November 2, 1991. ... Area code 323 is an area code for telephone dialing which covers, roughly, the area of central Los Angeles (excluding Downtown Los Angeles and immediately adjoining neighborhoods such as Koreatown, Echo Park, and Chinatown). ... Map of California area codes in blue (and border states) with 408 in red North American area code 408 is a California telephone area code which covers Saratoga, Los Gatos, Milpitas, Sunnyvale, Santa Clara, Cupertino and San Jose. ... Area code 415 was one of the original three area codes established in California in 1947. ... Area code 424 is the new area code for the west side of the Los Angeles Metropolitan area. ... Map of California area codes in blue (and border states) with 510 in red North American area code 510 is a California telephone area code which covers eastern Bay Area cities such as Hayward, Castro Valley, San Leandro, San Lorenzo, Alameda, Berkeley, Oakland, Piedmont, Richmond, San Pablo, Union City, and... The 530 area code covers Chico, Redding, Marysville, Red Bluff, Oroville, Placerville, and Truckee, California. ... Area Code 559 was created on November 14, 1998, when the southern half of the area code 209 (in service since 1958) reached full capacity. ... 562 is the telephone area code for much of the Gateway Cities region of southeastern Los Angeles County, California, including Long Beach and surrounding cities such as Cerritos, Lakewood, Downey, Norwalk, and Whittier. ... Map of California area codes in blue (and border states) with 619 in red North American area code 619 is a California telephone area code which was split from area code 714 on November 5, 1982[1]. This area code covers most of the greater San Diego area between the... Map of California area codes in blue (and border states) with 626 in red Area code 626 is the telephone area code covering most of the San Gabriel Valley and nearby areas in the northeastern portion of Los Angeles County, California, including Arcadia, Monrovia, El Monte, most of Pasadena and... North American area code 650 includes most of San Mateo County (except northernmost portion) and the northwestern portion of Santa Clara County, in California. ... 657 is a planned area code overlay for Northern Orange County, planned to be implemented in late 2008[1]. On Thursday, September 20, 2007, the California Public Utilities Commission approved an overlay of the whole 714 area with the new 657 area code. ... North American area code 661 covers the majority of Californias Kern County, as well as part of Los Angeles County. ... The 707 area code covers Napa, Vallejo, Fairfield, Santa Rosa, Fort Bragg, Crescent City, Eureka, Ukiah and northwestern California. ... Map of California area codes in blue (and border states) with 714 in red North American area code 714 is a California telephone area code which was split from area code 213 as a flash-cut sometime during 1951. ... North American area code 760 is a California telephone area code which encompasses much of the eastern portion of the state, as well as a great deal of Southern California. ... North American area code 805 includes most or all portions of the California counties of San Luis Obispo, Santa Barbara, and Ventura, plus southernmost portions of Monterey County, and a small portion of Los Angeles County. ... The 818 telephone area code consists largely of the San Fernando Valley, in the greater Los Angeles area. ... Telephone area code 831 consists of Salinas, Hollister, Monterey, Santa Cruz and northern Central Coast, California. ... 858 covers Del Mar and other parts of San Diego. ... Map of California area codes in blue (and border states) with 909 in red North American Area code 909 is a California telephone area code which was split from area code 714 on November 14, 1992. ... Area code 916 was one of the first three original area codes established in California in 1947. ... Map of California area codes in blue (and border states) with 925 in red In the North American Numbering Plan (NANP), area code 925 is an area code that covers parts of the Bay Area, California. ... The 949 area code in California is contained mostly within the southern and eastern areas of Orange County, California. ... Map of California area codes in blue (and border states) with 909 in red North American Area code 909 is a California telephone area code which was split from area code 714 on November 14, 1992. ... Map of California area codes in blue (and border states) with 714 in red North American area code 714 is a California telephone area code which was split from area code 213 as a flash-cut sometime during 1951. ... The 949 area code in California is contained mostly within the southern and eastern areas of Orange County, California. ... North American area code 760 is a California telephone area code which encompasses much of the eastern portion of the state, as well as a great deal of Southern California. ...