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US area codes

California area codes

A checked list of 41 in-service geographic area codes in California, with their dates, overlay partners and dialing rules.

Last checked 14 October 2026

Area codes across North America

Codes in service in California

California has 41 geographic area codes in service: 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. 213 is the oldest, dated 1947, and 357 the newest, dated 26 Mar 2025.1 All of California's codes are on Pacific time.

Area codeNANPA locationNPA in-service dateIn-service overlay peersTime zoneLocal calls within the code
209CA1958350Pacific1 + 10 digits
213CA1947323, 738Pacific1 + 10 digits
279CA10 Mar 2018916Pacific1 + 10 digits
310CA2 Nov 1991424Pacific1 + 10 digits
323CA13 Jun 1998213, 738Pacific1 + 10 digits
341CA22 Jul 2019510Pacific1 + 10 digits
350CA28 Nov 2022209Pacific1 + 10 digits
357CA26 Mar 2025559Pacific1 + 10 digits
369CA1 Feb 2023707Pacific1 + 10 digits
408CA1959669Pacific1 + 10 digits
415CA1947628Pacific1 + 10 digits
424CA26 Aug 2006310Pacific1 + 10 digits
442CA21 Nov 2009760Pacific1 + 10 digits
510CA2 Sep 1991341Pacific1 + 10 digits
530CA1 Nov 1997837Pacific1 + 10 digits
559CA14 Nov 1998357Pacific1 + 10 digits
562CA25 Jan 1997None listedPacific1 + 10 digits
619CA1982858Pacific1 + 10 digits
626CA14 Jun 1997None listedPacific1 + 10 digits
628CA21 Mar 2015415Pacific1 + 10 digits
650CA2 Aug 1997None listedPacific1 + 10 digits
657CA23 Sep 2008714Pacific1 + 10 digits
661CA13 Feb 1999None listedPacific7 digits
669CA20 Nov 2012408Pacific1 + 10 digits
707CA1959369Pacific1 + 10 digits
714CA1951657Pacific1 + 10 digits
738CA1 Nov 2024213, 323Pacific1 + 10 digits
747CA18 May 2009818Pacific1 + 10 digits
760CA22 Mar 1997442Pacific1 + 10 digits
805CA1957820Pacific1 + 10 digits
818CA7 Jan 1984747Pacific1 + 10 digits
820CA30 Jun 2018805Pacific1 + 10 digits
831CA11 Jul 1998None listedPacific7 digits
837CA31 Jan 2025530Pacific1 + 10 digits
840CA23 Feb 2021909Pacific1 + 10 digits
858CA12 Jun 1999619Pacific1 + 10 digits
909CA14 Nov 1992840Pacific1 + 10 digits
916CA1947279Pacific1 + 10 digits
925CA14 Mar 1998None listedPacific1 + 10 digits
949CA18 Apr 1998None listedPacific1 + 10 digits
951CA17 Jul 2004None listedPacific1 + 10 digits

Scroll the table sideways to see every column. Sources: NANPA (14 October 2026 file).

History and overlays in California

  • Before 1960: 213, 415, 916, 714, 805, 209, 408, 707
  • 1960 to 1989: 619, 818
  • 1990s: 510, 310, 909, 562, 760, 626, 650, 530, 925, 949, 323, 831, 559, 661, 858
  • 2000s: 951, 424, 657, 747, 442
  • 2010s: 669, 628, 279, 820, 341
  • 2020s: 840, 350, 369, 738, 837, 357

California's in-service overlay groups are 209/350; 213/323/738; 279/916; 310/424; 341/510; 357/559; 369/707; 408/669; 415/628; 442/760; 530/837; 619/858; 657/714; 747/818; 805/820; 840/909.1

  • 213/323/738: 213 (1947) was joined by 323 on 13 Jun 1998 and 738 on 1 Nov 2024.
  • 279/916: 916 (1947) was joined by 279 on 10 Mar 2018.
  • 415/628: 415 (1947) was joined by 628 on 21 Mar 2015.
  • 209/350: 209 (1958) was joined by 350 on 28 Nov 2022.

California has 12 more overlay groups, visible in the table above.

Dialing in California

Local calls within a single area code in California differ: 7 digits for 661, 831; 1 + 10 digits for 209, 213, 279, 310, 323, 341, 350, 357, 369, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 669, 707, 714, 738, 747, 760, 805, 818, 820, 837, 840, 858, 909, 916, 925, 949, 951. From any of California's codes, local calls to another area code are all recorded as 1 + 10 digits.1 Seven-digit local dialing is still recorded for 661, 831.

Pending codes in California

NANPA marks relief planning as in progress for 626, 657, 714, 949.

Neighbours of California

Regions that border California:

  • Oregon: 4 codes (458, 503, 541, 971)
  • Nevada: 3 codes (702, 725, 775)
  • Arizona: 5 codes (480, 520, 602, 623, ...)

Rules that apply to every region are on the area-code reference.

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Further reading

Longer research pieces on this topic, each with its own source list and a downloadable PDF.

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A 2026 U.S. guide to choosing a Google Business Profile primary number, evaluating tracking versus a stable main line, checking account ownership, and testing calls before and after an edit.

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Sources

Every regulatory and pricing claim on this page links to the primary source it came from. Figures were checked on the date shown at the top of the page; rules and prices change, so verify before relying on one.

  1. NANPA, NPA Database CSV, file dated 14 October 2026; US geographic codes, location, dates, overlay complexes, dialing plan and time zone. Retrieved 14 Oct 2026
    https://reports.nanpa.com/public/npa_report.csv

Keep reading

Reference
How overlays work
Why two codes can serve the same area and what ten-digit dialling changes.
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Get a number in California
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