Area codes 805 and 820

The numbering plan area (NPA) includes most or all of the counties of San Luis Obispo, Santa Barbara, Ventura, and the southernmost portions of Monterey County.

In August 2016, the California Public Utilities Commission held a series of hearings for the decision of providing a relief area code in NPA 805 in the form of an overlay or an area code split.

[3][4] New telephone numbers of 820 area code began service in June 2018, requiring ten-digit dialing for all calls.

[5] In addition to the municipalities below, area code 805 also serves the US military facilities in Kwajalein, Republic of the Marshall Islands with a Paso Robles prefix (805-355).

This arrangement originated from the US Army's first satellite communications station having been built at nearby Camp Roberts.

458/541 775 702 928 442/760 916/279 530 707 209 559 831 805 661 858 909 951 619 213 323 707 916/279 415 650 510/341 925 408 209 831 805 661 442/760 310/424 747/818 626 909 951 949 562 657/714
Numbering plan areas in California (blue) and border states. This map is clickable; click on any region shown to visit the page for those area codes.Area code 805 is shown in red.