Where Is Area Code 820?
Area code 820 is a geographic area code in coastal California. Its primary city is Camarillo, in Ventura County, and the code covers the broader Central Coast and southern coastal region.
Area code 820 overlays area code 805 across Ventura, Santa Barbara, and San Luis Obispo counties. Major communities in the region include Camarillo, Oxnard, Ventura, Simi Valley, Thousand Oaks, Santa Barbara, Santa Maria, and San Luis Obispo.
The region includes Pacific Ocean coastline, inland valleys, and mountain areas. Notable geographic features include the Santa Ynez Mountains, Los Padres National Forest, and Channel Islands National Park, which lies offshore near Santa Barbara and Ventura counties.
Cities and Communities in the 820 Area Code
- Camarillo, Ventura County
- Fillmore, Ventura County
- Moorpark, Ventura County
- Ojai, Ventura County
- Oxnard, Ventura County
- Port Hueneme, Ventura County
- Santa Paula, Ventura County
- Simi Valley, Ventura County
- Thousand Oaks, Ventura County
- Ventura, Ventura County
- Buellton, Santa Barbara County
- Carpinteria, Santa Barbara County
- Goleta, Santa Barbara County
- Lompoc, Santa Barbara County
- Santa Barbara, Santa Barbara County
- Santa Maria, Santa Barbara County
- Solvang, Santa Barbara County
- Arroyo Grande, San Luis Obispo County
- Atascadero, San Luis Obispo County
- Grover Beach, San Luis Obispo County
- Morro Bay, San Luis Obispo County
- Paso Robles, San Luis Obispo County
- Pismo Beach, San Luis Obispo County
- San Luis Obispo, San Luis Obispo County
History of Area Code 820
Area code 820 entered service on June 30, 2018, as an overlay of area code 805. The overlay added a second area code to the same geographic region instead of dividing the region into separate territories. Existing 805 customers could keep their phone numbers, while new numbers could receive either area code.
Area code 805 was created in 1957 when it split from area code 213. In 1999, area code 661 split from part of the 805 region as the demand for telephone numbers increased. The 820 overlay provided additional numbering capacity and made 10-digit dialing necessary for local calls in the combined 805 and 820 region.
Key Facts About Area Code 820
- Area code 820 is a California area code, and Camarillo is its primary city.
- Area code 820 covers the same broad geographic region as area code 805, including Ventura, Santa Barbara, and San Luis Obispo counties.
- Area code 820 is a geographic area code rather than a toll-free or non-geographic code.
- Area code 820 is an overlay code, not an original area code or a geographic split code.
- Area code 820 entered service on June 30, 2018.
- Area code 820 is located in the U.S. Census Pacific region.
- California State University Channel Islands is located in Camarillo, the primary city associated with area code 820.
- California Polytechnic State University, San Luis Obispo, is located within the 820 geographic region.
Frequently Asked Questions
What state is area code 820 in?
Area code 820 is in California.
What major cities use area code 820?
Major cities in the area code 820 region include Camarillo, Oxnard, Ventura, Simi Valley, Thousand Oaks, Santa Barbara, Santa Maria, and San Luis Obispo.
What time zone is area code 820 in?
Area code 820 is in Pacific Time.
Is area code 820 a toll-free number?
No. Area code 820 is a geographic area code, not a toll-free code.