Area Code 820 — California
Area code 820 is located in California and operates on Pacific Time . The largest city served is Thousand Oaks .
Area Code Details
- Area Code
- 820
- State / Province
- California (CA)
- Country
- United States
- Time Zone
- Pacific Time Pacific Time
- Local Time Now
- —
- Status
- Active
- Code Type
- General Purpose Code
- In Service Since
- June 30, 2018
- Assigned
- May 25, 2017
- Population Served
- ~241,316 est.
- Overlay Complex
- 805/820
Cities Served
History & Relationships
Split from
805Overlay complex — shares geography with
Rate Centers & Exchanges
10 rate centers identified within area code 820
Other Area Codes in California
View all →Nearby Area Codes
Frequently Asked Questions About Area Code 820
What state is area code 820?
Area code 820 is located in California, United States.
Where is area code 820 from?
Area code 820 originates from California. It operates in the Pacific Time zone.
What time zone is area code 820?
Area code 820 falls within the Pacific Time zone (Pacific Time).
What cities are in area code 820?
Area code 820 serves cities including Thousand Oaks, Santa Barbara, Pismo Beach, Guadalupe, Cayucos, Piru, Los Alamos, Parkfield, and more.
Is a call from area code 820 a scam?
Area code 820 is a legitimate general purpose code area code serving California. Like any area code, individual numbers using 820 can be used for scam calls — always verify the specific number if you receive an unexpected or suspicious call.