Everything you need to know about area code 820 in California
QUICK FACTS
California
Pacific Time Zone
Overlay code
Estimated residents served
California
Shares territory with existing code
ABOUT THIS AREA CODE
Area code 820 is a new overlay for the Inland Empire region of California, sharing territory with area codes 909 and 951. It serves Riverside and San Bernardino counties.
Phone numbers with the 820 area code follow the format (820) XXX-XXXX, where the next three digits represent the local exchange. The 820 area code is part of the North American Numbering Plan (NANP) and is regulated by the Federal Communications Commission (FCC).
If you receive a call from a 820 number that you don't recognize, you can search it using the lookup tool above. While the 820 area code legitimately serves millions of residents and businesses in the Riverside area, scammers sometimes spoof local area codes to make their calls appear more trustworthy. Always verify unfamiliar numbers before returning calls or sharing personal information.
The Riverside region served by area code 820 is one of the most densely populated areas in California. As an overlay code, 820 shares its geographic territory with other area codes in the region, meaning all local calls require 10-digit dialing.
For detailed information about any phone number in the 820 area code, including owner identification, carrier data, and spam reports, use our search tool above or visit one of our trusted lookup providers.
CITIES & COMMUNITIES
SPAM & SCAM ALERTS
These are frequently reported scam patterns from phone numbers using the 820 area code. Scammers often spoof area codes, so a call appearing to come from 820 may originate elsewhere.
Callers claim to be from the IRS, threatening arrest or legal action unless immediate payment is made. The real IRS always contacts taxpayers by mail first.
Callers claim your computer has a virus and offer to fix it remotely. They install malware or charge for unnecessary services.
Automated messages claim suspicious activity on your bank account and ask you to verify account details by pressing a number.
Stay Safe: Never share personal information with incoming callers. If suspicious, hang up and search the number above.
FREQUENTLY ASKED QUESTIONS
Area code 820 serves Riverside, California. Area code 820 is a new overlay for the Inland Empire region of California, sharing territory with area codes 909 and 951. It serves Riverside and San Bernardino counties.
Area code 820 is in the Pacific timezone. Calls from 820 numbers originate from the Riverside region.
Not necessarily. Area code 820 serves many people in Riverside. However, scammers can spoof any area code. If you receive a suspicious call from a 820 number, search it above before calling back.
Area code 820 was created in 2024. It is an overlay code sharing territory with an existing area code.
RELATED AREA CODES
WHO CALLED ME
If you received an unknown call from a 820 number, use our dedicated lookup page to identify the caller and check for scam reports.
Who Called Me From 820? →