West region · Pacific Time
California Area Codes
All 41 area codes serving California, the cities each one covers, and which are overlays. California is served by 41 area codes in the Pacific Time zone.
Last updated October 1, 2026
Full list
Every California area code
California is served by 41 area codes in the Pacific Time zone. 17 of these are overlay codes layered over busy metros; the rest are geographic codes.
| Code | Area served | Type | In service |
|---|---|---|---|
| 209 | Northern San Joaquin Valley and Sierra foothills including Stockton, Modesto and Merced | Geographic | Since 1958 |
| 213 | Downtown and central Los Angeles plus nearby southeast Los Angeles County cities | Geographic | Since 1947 |
| 279 | Sacramento and its suburbs in Sacramento, Placer, Yolo and El Dorado counties | Overlay | Since 2018 |
| 310 | West Los Angeles, the Westside, beach cities and South Bay of Los Angeles County | Geographic | Since 1991 |
| 323 | Downtown and central Los Angeles plus nearby southeast Los Angeles County cities | Overlay | Since 1998 |
| 341 | Western Alameda and Contra Costa counties on the East Bay, including Oakland and Fremont | Overlay | Since 2019 |
| 350 | Northern San Joaquin Valley and Sierra foothills including Stockton, Modesto and Merced | Overlay | Since 2022 |
| 357 | Southern San Joaquin Valley including Fresno, Visalia, Clovis and Hanford | Overlay | Since 2025 |
| 369 | North Bay wine country and the North Coast of California, from Vallejo to Crescent City | Overlay | Since 2023 |
| 408 | San Jose and most of Santa Clara County in Silicon Valley | Geographic | Since 1959 |
| 415 | San Francisco and Marin County north of the Golden Gate | Geographic | Since 1947 |
| 424 | West Los Angeles, the Westside, beach cities and South Bay of Los Angeles County | Overlay | Since 2006 |
| 442 | Inland Southern California deserts plus North San Diego County, from Oceanside to Bishop | Overlay | Since 2009 |
| 510 | Western Alameda and Contra Costa counties on the East Bay, including Oakland and Fremont | Geographic | Since 1991 |
| 530 | Northern and eastern California outside the Bay Area and Sacramento metro | Geographic | Since 1997 |
| 559 | Southern San Joaquin Valley including Fresno, Visalia, Clovis and Hanford | Geographic | Since 1998 |
| 562 | Long Beach and southeastern Los Angeles County, plus a sliver of Orange County | Geographic | Since 1997 |
| 619 | San Diego and southern and eastern San Diego County | Geographic | Since 1982 |
| 626 | San Gabriel Valley of Los Angeles County, including Pasadena, El Monte and West Covina | Geographic | Since 1997 |
| 628 | San Francisco and Marin County north of the Golden Gate | Overlay | Since 2015 |
| 650 | San Francisco Peninsula, from Daly City through San Mateo County to Palo Alto | Geographic | Since 1997 |
| 657 | Northern and western Orange County including Anaheim, Santa Ana and Huntington Beach | Overlay | Since 2008 |
| 661 | Kern County and the Antelope and Santa Clarita valleys of northern Los Angeles County | Geographic | Since 1999 |
| 669 | San Jose and most of Santa Clara County in Silicon Valley | Overlay | Since 2012 |
| 707 | North Bay wine country and the North Coast of California, from Vallejo to Crescent City | Geographic | Since 1959 |
| 714 | Northern and western Orange County including Anaheim, Santa Ana and Huntington Beach | Geographic | Since 1951 |
| 738 | Downtown and central Los Angeles plus nearby southeast Los Angeles County cities | Overlay | Since 2024 |
| 747 | San Fernando Valley, Glendale, Burbank and nearby areas of Los Angeles County | Overlay | Since 2009 |
| 760 | Inland Southern California deserts plus North San Diego County, from Oceanside to Bishop | Geographic | Since 1997 |
| 805 | California Central Coast: Ventura, Santa Barbara and San Luis Obispo counties | Geographic | Since 1957 |
| 818 | San Fernando Valley, Glendale, Burbank and nearby areas of Los Angeles County | Geographic | Since 1984 |
| 820 | California Central Coast: Ventura, Santa Barbara and San Luis Obispo counties | Overlay | Since 2018 |
| 831 | Monterey Bay region including Salinas, Santa Cruz, Monterey and Hollister | Geographic | Since 1998 |
| 837 | Northern and eastern California outside the Bay Area and Sacramento metro | Overlay | Since 2025 |
| 840 | Western San Bernardino County and the Pomona Valley of eastern Los Angeles County | Overlay | Since 2021 |
| 858 | San Diego and southern and eastern San Diego County | Overlay | Since 1999 |
| 909 | Western San Bernardino County and the Pomona Valley of eastern Los Angeles County | Geographic | Since 1992 |
| 916 | Sacramento and its suburbs in Sacramento, Placer, Yolo and El Dorado counties | Geographic | Since 1947 |
| 925 | Eastern Contra Costa County and the Tri-Valley area of eastern Alameda County | Geographic | Since 1998 |
| 949 | Southern and coastal Orange County including Irvine, Newport Beach and Mission Viejo | Geographic | Since 1998 |
| 951 | Western Riverside County including Riverside, Moreno Valley, Corona and Temecula | Geographic | Since 2004 |
Area codes and dialing in California
California's 41 area codes mix older geographic codes with newer overlays. The busiest metros — around Anaheim, Bakersfield, Concord — carry the most numbers and rely on overlays, which is why 10-digit dialing is required there. Quieter parts of the state may still use a single code. The original code in the California list is 209 (Stockton).
Whenever a California region runs low on numbers, a new overlay is added on top rather than splitting the map, so existing customers keep their numbers. See 10-digit dialing for what that means in practice, or the newest area codes for upcoming changes.
Cities with multiple area codes
These California metros are served by an overlay of two or more codes, so 10-digit dialing applies: Los Angeles · Anaheim · Fresno · Oakland · Oceanside · Oxnard · Redding · Sacramento · San Bernardino · San Diego · San Francisco · San Jose · Santa Rosa · Stockton.
Browse California another way
Explore by West region, by time zone, or jump to the city index. You can also see the complete numeric list of every US area code.
Quick answers
California area code FAQ
How many area codes does California have?
California currently has 41 area codes: 209, 213, 279, 310, 323, 341, 350, 357, 369, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 738, 747, 760, 805, 818, 820, 831, 837, 840, 858, 909, 916, 925, 949, 951.
What is the main area code for California?
The busiest metro in California is served by the 209 code. Major cities include Anaheim, Bakersfield, Concord, Fresno, Irvine.
Does California require 10-digit dialing?
Yes, in its overlay metros you must dial all 10 digits. Ten-digit dialing is the national standard.