California Area Codes
Directory of all 44 telephone area codes assigned to California.
California phone numbers are served by 44 area codes operating in the Pacific timezone.Because an overlay is active, 10-digit dialing is mandatory across much of the state. No area codes in California are currently flagged as high-risk scams.
Most populated prefix: area code 323 (California)
All Area Codes in California
Area Code 209
Stockton, Modesto, Tracy, Merced, Manteca, Turlock, Lodi, Los Banos, Ceres, Lathrop
Area Code 213
Los Angeles, Montebello, Commerce, Vernon
Area Code 279
Sacramento, Elk Grove, Roseville, Folsom, Rancho Cordova, Citrus Heights, Rocklin, Lincoln, West Sacramento, Loomis
Area Code 310
Torrance, Inglewood, Carson, Compton, Santa Monica, South Gate, Hawthorne, Redondo Beach, Lynwood, Gardena
Area Code 323
Los Angeles, South Gate, Montebello, Huntington Park, Bell Gardens, Commerce, Vernon
Area Code 341
Oakland, Fremont, Hayward, Berkeley, Richmond, San Leandro, Milpitas, Alameda, Union City, Newark
Area Code 350
Stockton, Modesto, Tracy, Merced, Manteca, Turlock, Lodi, Los Banos, Ceres, Lathrop
Area Code 357
Fresno, Visalia, Clovis, Tulare, Madera, Porterville, Hanford, Lemoore, Sanger, Reedley
Area Code 369
Santa Rosa, Vallejo, Fairfield, Vacaville, Napa, Petaluma, Rohnert Park, Suisun City, Benicia, Windsor
Area Code 408
San Jose, Sunnyvale, Santa Clara, Milpitas, Gilroy, Cupertino, Morgan Hill, Campbell, Los Gatos, Saratoga
Area Code 415
San Francisco, South San Francisco, San Rafael, Novato, Mill Valley, Larkspur, San Anselmo, Corte Madera, Tiburon, Fairfax
Area Code 424
Torrance, Inglewood, Carson, Compton, Santa Monica, South Gate, Hawthorne, Redondo Beach, Lynwood, Gardena
Area Code 442
Oceanside, Escondido, Victorville, Carlsbad, Hesperia, Vista, San Marcos, Indio, Apple Valley, Encinitas
Area Code 510
Oakland, Fremont, Hayward, Berkeley, Richmond, San Leandro, Milpitas, Alameda, Union City, Newark
Area Code 530
Bakersfield, Chico, Redding, Yuba City, Davis, Woodland, Oroville, Truckee, Red Bluff, Grass Valley
Area Code 559
Fresno, Visalia, Clovis, Tulare, Madera, Porterville, Hanford, Lemoore, Sanger, Reedley
Area Code 562
Long Beach, Downey, Norwalk, Carson, Compton, South Gate, Whittier, Lakewood, Bellflower, Lynwood
Area Code 619
San Diego, Chula Vista, El Cajon, La Mesa, Santee, National City, Poway, Lemon Grove, Imperial Beach, Coronado
Area Code 626
Pasadena, West Covina, El Monte, Alhambra, Baldwin Park, Monterey Park, Arcadia, Glendora, Rosemead, Covina
Area Code 627
Santa Rosa, Napa, Petaluma, Sonoma
Area Code 628
San Francisco, South San Francisco, San Rafael, Novato, Mill Valley, Larkspur, San Anselmo, Corte Madera, Tiburon, Fairfax
Area Code 650
San Francisco, San Mateo, Daly City, Redwood City, Palo Alto, South San Francisco, San Bruno, Pacifica, Menlo Park, Foster City
Area Code 657
Anaheim, Santa Ana, Huntington Beach, Garden Grove, Fullerton, Orange, Westminster, Buena Park, Yorba Linda, Fountain Valley
Area Code 661
Bakersfield, Santa Clarita, Lancaster, Palmdale, Delano, Wasco, Shafter, Arvin, Mcfarland, Tehachapi
Area Code 669
San Jose, Sunnyvale, Santa Clara, Milpitas, Gilroy, Cupertino, Morgan Hill, Campbell, Los Gatos, Saratoga
Area Code 707
Santa Rosa, Vallejo, Fairfield, Vacaville, Napa, Petaluma, Rohnert Park, Suisun City, Benicia, Windsor
Area Code 714
Anaheim, Santa Ana, Huntington Beach, Garden Grove, Fullerton, Orange, Westminster, Buena Park, Yorba Linda, Fountain Valley
Area Code 738
Los Angeles, Montebello, Commerce, Vernon
Area Code 747
Glendale, Pasadena, Burbank, San Fernando, Calabasas, La Cañada Flintridge, Agoura Hills, Westlake Village, Hidden Hills
Area Code 760
Oceanside, Escondido, Victorville, Carlsbad, Hesperia, Vista, San Marcos, Indio, Apple Valley, Encinitas
Area Code 764
San Mateo, Redwood City, Palo Alto
Area Code 805
Oxnard, Simi Valley, Thousand Oaks, Santa Maria, San Buenaventura (ventura), Santa Barbara, Camarillo, San Luis Obispo, Lompoc, Moorpark
Area Code 818
Glendale, Pasadena, Burbank, San Fernando, Calabasas, La Cañada Flintridge, Agoura Hills, Westlake Village, Hidden Hills
Area Code 820
Oxnard, Simi Valley, Thousand Oaks, Santa Maria, San Buenaventura (ventura), Santa Barbara, Camarillo, San Luis Obispo, Lompoc, Moorpark
Area Code 831
Salinas, Santa Cruz, Watsonville, Hollister, Seaside, Monterey, Soledad, Pacific Grove, King City, Scotts Valley
Area Code 837
Bakersfield, Chico, Redding, Yuba City, Davis, Woodland, Oroville, Truckee, Red Bluff, Grass Valley
Area Code 840
San Bernardino, Fontana, Ontario, Rancho Cucamonga, Pomona, Rialto, Chino, Upland, Chino Hills, Redlands
Area Code 858
San Diego, Chula Vista, El Cajon, La Mesa, Santee, National City, Poway, Lemon Grove, Imperial Beach, Coronado
Area Code 909
San Bernardino, Fontana, Ontario, Rancho Cucamonga, Pomona, Rialto, Chino, Upland, Chino Hills, Redlands
Area Code 916
Sacramento, Elk Grove, Roseville, Folsom, Rancho Cordova, Citrus Heights, Rocklin, Lincoln, West Sacramento, Loomis
Area Code 925
Concord, Antioch, San Ramon, Livermore, Pittsburg, Pleasanton, Dublin, Walnut Creek, Brentwood, Oakley
Area Code 935
Chula Vista, El Cajon, La Mesa, National City, Coronado
Area Code 949
Irvine, Costa Mesa, Mission Viejo, Lake Forest, Newport Beach, Tustin, Laguna Niguel, San Clemente, Aliso Viejo, Rancho Santa Margarita
Area Code 951
Riverside, Moreno Valley, Corona, Menifee, Temecula, Murrieta, Jurupa Valley, Hemet, Perris, Lake Elsinore
Major Cities Served by California Area Codes
The most populous urban centers and census places covered by California's area codes, ranked by population.
California Area Code FAQs
Quick answers to common questions about California telephone area codes.
How many area codes does California have?
California has 44 area codes: 209, 213, 279, 310, 323, 341, 350, 357, 369, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 627, 628, 650, 657, 661, 669, 707, 714, 738, 747, 760, 764, 805, 818, 820, 831, 837, 840, 858, 909, 916, 925, 935, 949, 951.
What timezone do California area codes use?
California area codes operate in the Pacific timezone.
What is the most populated area code in California?
Area code 323 is the most populous prefix in California based on covered city population.
Which California area codes share an overlay?
209 and 350, 213 and 323, 213 and 738, 279 and 916, 310 and 424, 323 and 738, 341 and 510, 357 and 559, 369 and 707, 408 and 669, 415 and 628, 442 and 760, 530 and 837, 619 and 858, 657 and 714, 747 and 818, 805 and 820, 840 and 909. Overlay codes serve the same area, which is why 10-digit dialing is required.
Are there scam area codes in California?
California has no area codes currently flagged as high-risk scams.
About California Area Codes & Phone Dialing Rules
When placing calls within California, ten-digit dialing (area code + 7-digit telephone number) is required in overlay regions where multiple area codes serve the same geographic boundaries.