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All Area Codes/California
820

Camarillo, California

Area code 820

State
California
Region
Pacific
Time zone
PT
Type
Geographic
--:--local time

Got a missed call from 820?

Our directory lists 820 for Camarillo, California, but an area code alone cannot establish who is calling. Scammers can fake caller ID to match the first six digits of the number they are dialing, a trick called neighbor spoofing, so a familiar-looking code proves nothing about who is really calling.

If you were not expecting the call, let it go to voicemail. Verify the caller through a trusted contact method before returning the call, and never share personal details with an unverified caller.

Worth knowing: an area code no longer tells you where someone is. Mobile numbers keep their original code when people move, so a 820 number may belong to someone who left California years ago.

Frequently asked questions about 820

Where is area code 820?

Our directory lists area code 820 for Camarillo, California. The listed city is a reference location, not a complete coverage map. A phone number's area code does not establish the caller's current location.

What time zone is area code 820 in?

This directory uses Pacific Time (PT) for California. This is state-level guidance; confirm the recipient's local time before calling.

Is area code 820 a scam?

An area code alone cannot tell you whether a call is genuine. Caller ID can be spoofed, including numbers that appear local. Let unexpected calls go to voicemail and verify the caller independently before sharing personal information.

Is area code 820 toll-free?

The directory lists 820 as a geographic area code, not a toll-free code. US toll-free codes include 800, 833, 844, 855, 866, 877, and 888. Your carrier and calling plan determine any charges.

37 listed area codes in California

209 Lodi213 Los Angeles279 Arden-Arcade310 Los Angeles323 Los Angeles341 Oakland369 Santa Rosa408 Gilroy415 San Francisco424 Beverly Hills442 Apple Valley510 Alameda530 Chico559 Clovis562 Bellflower619 Chula Vista626 Alhambra627 Santa Rosa628 San Francisco650 Daly City657 Anaheim661 Earlimart669 San Jose707 Benicia714 Anaheim747 Burbank760 Apple Valley805 Camarillo818 Agoura Hills831 Salinas858 San Diego909 Anaheim916 Elk Grove925 Antioch949 Costa Mesa951 Corona

Nearby in the Pacific

206 Seattle253 Kent360 Bellingham425 Bellevue458 Eugene503 Beaver509 Kennewick541 Bend564 Seattle808 Honolulu

Where Is Area Code 820?

Area code 820 serves the same geographic territory as area code 805 along California’s Central Coast and in Ventura County. Its main counties are San Luis Obispo, Santa Barbara, and Ventura. Camarillo, the primary city associated with 820, is in Ventura County.

Cities in the region include San Luis Obispo, Santa Barbara, Santa Maria, Oxnard, and Ventura. Because 820 is an overlay, it serves the same local area as 805 rather than a separate geographic region.

The region includes Pacific coastline, inland valleys, and parts of the Santa Ynez Mountains. Los Padres National Forest reaches into the region, and Channel Islands National Park has its mainland visitor center in Ventura. Major campuses include Cal Poly in San Luis Obispo, UC Santa Barbara near Goleta, and California State University Channel Islands in Camarillo.

Cities and Communities in the 820 Area Code

  • Arroyo Grande, San Luis Obispo County
  • Atascadero, San Luis Obispo County
  • Buellton, Santa Barbara County
  • Camarillo, Ventura County
  • Carpinteria, Santa Barbara County
  • Fillmore, Ventura County
  • Goleta, Santa Barbara County
  • Grover Beach, San Luis Obispo County
  • Guadalupe, Santa Barbara County
  • Lompoc, Santa Barbara County
  • Moorpark, Ventura County
  • Morro Bay, San Luis Obispo County
  • Ojai, Ventura County
  • Oxnard, Ventura County
  • Paso Robles, San Luis Obispo County
  • Pismo Beach, San Luis Obispo County
  • Port Hueneme, Ventura County
  • San Luis Obispo, San Luis Obispo County
  • Santa Barbara, Santa Barbara County
  • Santa Maria, Santa Barbara County
  • Santa Paula, Ventura County
  • Simi Valley, Ventura County
  • Solvang, Santa Barbara County
  • Thousand Oaks, Ventura County
  • Ventura, Ventura County

History of Area Code 820

Area code 805 was established in 1957 when it split from area code 213. In 1999, area code 661 split from 805 and took inland communities such as Bakersfield and Santa Clarita into a separate numbering area. Area code 805 continued to serve the Central Coast and Ventura County.

Area code 820 entered service on June 30, 2018, as an overlay for the 805 region. An overlay adds a new area code to the same territory instead of dividing it or requiring existing customers to change numbers. The overlay requires callers to dial 10 digits, including the area code, for local calls in the region.

Key Facts About Area Code 820

  • Area code 820 is in California, in the U.S. Census Pacific region, and uses Pacific Time.
  • Camarillo, in Ventura County, is the primary city associated with area code 820.
  • Area code 820 is a geographic overlay of area code 805, not a separate region created by a geographic split.
  • Area code 820 entered service on June 30, 2018.
  • Area code 805 began in 1957 as a split from area code 213.
  • The 805 and 820 numbering area includes communities in San Luis Obispo, Santa Barbara, and Ventura counties.
  • California State University Channel Islands is in Camarillo, Cal Poly is in San Luis Obispo, and UC Santa Barbara is near Goleta.
  • Area code 820 has no single official population count because area-code boundaries do not match census reporting areas.