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| City | Dialing Code | Area Code |
|---|
| Alameda | +1 510 | 510 |
| Alhambra | +1 626 | 626 |
| Anaheim | +1 714 | 714 |
| Antioch | +1 925 | 925 |
| Apple Valley | +1 760 | 760 |
| Arcadia | +1 626 | 626 |
| Bakersfield | +1 661 | 661 |
| Baldwin Park | +1 626 | 626 |
| Bellflower | +1 562 | 562 |
| Berkeley | +1 510 | 510 |
| Buena Park | +1 657 | 657 |
| Burbank | +1 818 | 818 |
| Camarillo | +1 805 | 805 |
| Carlsbad | +1 760 | 760 |
| Carson | +1 310 | 310 |
| Castro Valley | +1 510 | 510 |
| Cathedral City | +1 760 | 760 |
| Cerritos | +1 562 | 562 |
| Chico | +1 916 | 916 |
| Chino | +1 909 | 909 |
| Chino Hills | +1 909 | 909 |
| Chula Vista | +1 619 | 619 |
| Citrus Heights | +1 916 | 916 |
| Clovis | +1 559 | 559 |
| Colton | +1 909 | 909 |
| Compton | +1 310 | 310 |
| Concord | +1 603 | 603 |
| Corona | +1 909 | 909 |
| Costa Mesa | +1 714 | 714 |
| Cupertino | +1 408 | 408 |
| Daly City | +1 650 | 650 |
| Davis | +1 530 | 530 |
| Delano | +1 661 | 661 |
| Diamond Bar | +1 909 | 909 |
| Downey | +1 310 | 310 |
| El Cajon | +1 619 | 619 |
| El Monte | +1 626 | 626 |
| Elk Grove | +1 916 | 916 |
| Encinitas | +1 760 | 760 |
| Escondido | +1 760 | 760 |
| Fairfield | +1 707 | 707 |
| Folsom | +1 916 | 916 |
| Fontana | +1 909 | 909 |
| Fountain Valley | +1 714 | 714 |
| Fremont | +1 0 | 0 |
| Fresno | +1 559 | 559 |
| Fullerton | +1 714 | 714 |
| Garden Grove | +1 714 | 714 |
| Gardena | +1 310 | 310 |
| Glendale | +1 818 | 818 |
| Hacienda Heights | +1 626 | 626 |
| Hanford | +1 559 | 559 |
| Hawthorne | +1 424 | 424 |
| Hayward | +1 510 | 510 |
| Hemet | +1 909 | 909 |
| Hesperia | +1 442 | 442 |
| Highland | +1 909 | 909 |
| Huntington Beach | +1 714 | 714 |
| Huntington Park | +1 323 | 323 |
| Indio | +1 760 | 760 |
| Inglewood | +1 323 | 323 |
| Irvine | +1 949 | 949 |
| La Habra | +1 562 | 562 |
| La Mesa | +1 619 | 619 |
| Laguna Niguel | +1 949 | 949 |
| Lakewood | +1 303 | 303 |
| Lancaster | +1 661 | 661 |
| Livermore | +1 925 | 925 |
| Lodi | +1 209 | 209 |
| Long Beach | +1 562 | 562 |
| Los Angeles | +1 213 | 213 |
| Lynwood | +1 310 | 310 |
| Madera | +1 559 | 559 |
| Manteca | +1 209 | 209 |
| Merced | +1 209 | 209 |
| Mission Viejo | +1 949 | 949 |
| Modesto | +1 209 | 209 |
| Montebello | +1 323 | 323 |
| Monterey Park | +1 626 | 626 |
| Moreno Valley | +1 951 | 951 |
| Mountain View | +1 650 | 650 |
| Murrieta | +1 951 | 951 |
| Napa | +1 707 | 707 |
| National City | +1 619 | 619 |
| Newport Beach | +1 949 | 949 |
| Norwalk | +1 562 | 562 |
| Novato | +1 415 | 415 |
| Oakland | +1 510 | 510 |
| Oceanside | +1 760 | 760 |
| Ontario | +1 909 | 909 |
| Orange | +1 714 | 714 |
| Oxnard | +1 805 | 805 |
| Palm Desert | +1 760 | 760 |
| Palmdale | +1 661 | 661 |
| Palo Alto | +1 650 | 650 |
| Pasadena | +1 281 | 281 |
| Perris | +1 951 | 951 |
| Petaluma | +1 707 | 707 |
| Pico Rivera | +1 562 | 562 |
| Pittsburg | +1 925 | 925 |
| Pleasanton | +1 925 | 925 |
| Pomona | +1 752 | 752 |
| Porterville | +1 559 | 559 |
| Rancho Cordova | +1 916 | 916 |
| Rancho Cucamonga | +1 909 | 909 |
| Redding | +1 530 | 530 |
| Redlands | +1 909 | 909 |
| Redondo Beach | +1 424 | 424 |
| Redwood City | +1 650 | 650 |
| Rialto | +1 909 | 909 |
| Richmond | +1 604 | 604 |
| Riverside | +1 951 | 951 |
| Rocklin | +1 916 | 916 |
| Rosemead | +1 626 | 626 |
| Roseville | +1 916 | 916 |
| Rowland Heights | +1 626 | 626 |
| Sacramento | +1 916 | 916 |
| Salinas | +1 831 | 831 |
| San Bernardino | +1 909 | 909 |
| San Clemente | +1 949 | 949 |
| San Diego | +1 619 | 619 |
| San Francisco | +1 415 | 415 |
| San Jose | +1 408 | 408 |
| San Leandro | +1 510 | 510 |
| San Marcos | +1 442 | 442 |
| San Mateo | +1 650 | 650 |
| San Rafael | +1 415 | 415 |
| Santa Ana | +1 714 | 714 |
| Santa Barbara | +1 805 | 805 |
| Santa Clara | +1 408 | 408 |
| Santa Clarita | +1 661 | 661 |
| Santa Cruz | +1 831 | 831 |
| Santa Maria | +1 805 | 805 |
| Santa Monica | +1 310 | 310 |
| Santa Rosa | +1 707 | 707 |
| Simi Valley | +1 805 | 805 |
| South Gate | +1 323 | 323 |
| South San Francisco | +1 650 | 650 |
| Stockton | +1 209 | 209 |
| Sunnyvale | +1 408 | 408 |
| Temecula | +1 909 | 909 |
| Thousand Oaks | +1 805 | 805 |
| Torrance | +1 310 | 310 |
| Tracy | +1 209 | 209 |
| Tulare | +1 559 | 559 |
| Turlock | +1 209 | 209 |
| Tustin | +1 714 | 714 |
| Union City | +1 510 | 510 |
| Upland | +1 909 | 909 |
| Vacaville | +1 707 | 707 |
| Vallejo | +1 707 | 707 |
| Victorville | +1 760 | 760 |
| Visalia | +1 559 | 559 |
| Vista | +1 442 | 442 |
| Walnut Creek | +1 925 | 925 |
| Watsonville | +1 831 | 831 |
| West Covina | +1 626 | 626 |
| Westminster | +1 657 | 657 |
| Whittier | +1 562 | 562 |
| Woodland | +1 269 | 269 |
| Yorba Linda | +1 657 | 657 |
