Area Code 820 is located in California, USA. The area code serves the main area of Oxnard, Ventura, Santa Maria and many more. Area Code 820 was put into service on June 30th 2018 as an overlay complex with Area Code 805.
California Counties within Area Code 820
Monterey, San Luis Obispo, Santa Barbara, and Ventura.
California Major Cities within Area Code 820
Atascadero, Camarillo, Goleta, Lompoc, Moorpark, Orcutt, Oxnard, Port Hueneme, San Luis Obispo, Santa Barbara, Santa Maria, Santa Paula, Simi Valley, Thousand Oaks, and Vanderberg AFB.
Area Code 820 Time Zone?
820 is located in the Pacific time zone, which is known as America/Los Angeles.