California Area Codes: List, Map, and Overlays

California has 40 active telephone area codes, more area codes than any other state, and the list below covers every one of them grouped by region. Where you see two or three codes together, that’s an overlay: the codes share the same geographic territory, and any of them can belong to a phone in that area.

Every California Area Code by Region

Cities listed are the largest or most recognizable in each zone, not a complete roster.

Greater Los Angeles and the Inland Empire

  • 213 / 323 / 738 — Downtown Los Angeles, South LA, Koreatown
  • 310 / 424 — West LA, Santa Monica, Torrance, Inglewood, Manhattan Beach
  • 562 — Long Beach, Lakewood, Downey, Whittier, Norwalk
  • 626 — San Gabriel Valley: Pasadena, Arcadia, West Covina, Alhambra
  • 661 — Antelope Valley, Bakersfield, Santa Clarita, Palmdale, Lancaster
  • 818 / 747 — San Fernando Valley: Burbank, Glendale, Encino, Van Nuys
  • 909 / 840 — Western Inland Empire: San Bernardino, Ontario, Pomona, Rancho Cucamonga
  • 951 — Southern Inland Empire: Riverside, Corona, Temecula, Moreno Valley

San Diego and Orange County

  • 619 / 858 — San Diego, La Jolla, El Cajon, Chula Vista, Poway
  • 714 / 657 — Northern Orange County: Anaheim, Santa Ana, Fullerton, Huntington Beach, Garden Grove
  • 760 / 442 — North San Diego County and the desert: Oceanside, Escondido, Palm Springs, Victorville
  • 949 — South Orange County: Irvine, Newport Beach, Laguna Beach, Mission Viejo, San Clemente

Central Coast and Central Valley

  • 209 / 350 — Northern Central Valley: Stockton, Modesto, Merced, Tracy, Manteca
  • 559 / 357 — Southern Central Valley: Fresno, Visalia, Madera, Clovis, Hanford
  • 805 / 820 — Central Coast: Santa Barbara, San Luis Obispo, Ventura, Thousand Oaks, Camarillo
  • 831 — Monterey Bay: Salinas, Santa Cruz, Monterey, Watsonville, Hollister

San Francisco Bay Area

  • 408 / 669 — San Jose, Sunnyvale, Santa Clara, Cupertino, Milpitas
  • 415 / 628 — San Francisco and Marin County: San Rafael, Novato, Mill Valley
  • 510 / 341 — East Bay: Oakland, Berkeley, Fremont, Hayward, Richmond
  • 650 — Peninsula: San Mateo, Palo Alto, Redwood City, Daly City, Menlo Park
  • 707 / 369 — North Bay and North Coast: Santa Rosa, Napa, Vallejo, Eureka, Ukiah
  • 925 — Contra Costa and Tri-Valley: Concord, Walnut Creek, Pleasanton, Livermore, Antioch

Northern California and the Sierra Nevada

  • 530 / 837 — Northeastern California: Chico, Redding, Davis, South Lake Tahoe, Yuba City, Truckee, Paradise
  • 916 / 279 — Sacramento metro: Sacramento, Elk Grove, Roseville, Folsom, Citrus Heights

The 357 overlay in the Fresno region is the newest, opening for assignments after 559 ran out of available prefixes in late 2025.1California Public Utilities Commission. 559/357 Area Codes2California Public Utilities Commission. CPUC Reminds Consumers of the New 837 Area Code Coming to the 530 Region3California Public Utilities Commission. New 738 Area Code Coming to the 213/323 Region

Why Some Regions Have Two or Three Codes

An area code exhausts when carriers have used up all its assignable three-digit prefixes. When that happens, regulators can either split the region geographically (old code stays in one half, new code goes to the other) or drop a second code on top of the same territory. Splits force half the population to change their phone number, so California hasn’t used them in recent relief cycles. Every new California area code in living memory has been an overlay, which means nobody’s existing number changes when the new code arrives.

The California Public Utilities Commission approves these relief plans and sets the transition timeline.4California Public Utilities Commission. Area Codes and Numbering The only people who get the new code are those requesting new service or an additional line after it goes live.

When You Have to Dial All 10 Digits

Anywhere in California that two or more area codes share a region, every call has to be dialed with the full 10 digits, even to a neighbor with the same area code as you. Seven digits will not connect. This applies to landlines, cell phones, and business systems.4California Public Utilities Commission. Area Codes and Numbering

Nine other California codes went to mandatory 10-digit dialing to make room for the 988 Suicide and Crisis Lifeline: 209, 530, 562, 626, 650, 707, 925, 949, and 951. Each of those regions had used 988 as a local prefix, so 10-digit dialing was needed to keep the crisis line reachable.5Federal Communications Commission. Area Codes Required to Transition to 10-Digit Dialing

Your Area Code Doesn’t Have to Match Where You Live

Federal number portability rules let you keep your phone number when you switch carriers, and the transfer usually clears within one business day for a wireless line.6eCFR. 47 CFR Part 52 Subpart C – Number Portability Moving across the state is a different question. A wireless number generally travels with you regardless of area code, so a 916 cell can move to San Diego without changing. A landline ported outside its original region often can’t be kept.7Federal Communications Commission. Porting – Keeping Your Phone Number When You Change Providers Millions of Californians carry area codes that no longer match their address, and it has no effect on service.

What’s Changing Next

The 714/657 area serving northern Orange County is projected to run out of prefixes in early 2027. The CPUC has already approved a third overlay for the Anaheim, Santa Ana, and Fullerton region, which will activate before then.8California Public Utilities Commission. 657/714 NPA Relief Decision The 949 code in south Orange County is also headed toward exhaustion within a few years, though no relief decision has been issued yet.9North American Numbering Plan Administrator. 2024 NANPA Annual Report If you’re in either region, your existing number stays the same when the new code goes live.