820 Area Code — Check Number
About Area Code 820
Area code 820 covers California. Whether screening calls for business or checking a suspicious number, our phone checker gives you the information you need with detailed reports.
820 Prefixes
Everything You Need to Know About Area Code 820
Area code 820 is an active North American Numbering Plan (NANP) code serving California. It was established to provide telephone numbers for this region and is one of the most recognized area codes in the country.
Who Uses Area Code 820?
Both residential and business customers in California use phone numbers with the 820 area code. This includes landline telephones, mobile phones, and VoIP services. Major cities, suburban communities, and rural areas within the coverage zone all share this area code.
How Area Codes Work
Area codes are the first three digits of a 10-digit phone number. They identify a specific geographic region. When combined with the three-digit prefix (also called an exchange or NXX code) and the four-digit line number, they form a complete, unique phone number within the North American telephone network.
Why You Might Want to Look Up a 820 Number
There are many reasons to search a phone number with this area code. You may have received a call from an unfamiliar number and want to identify the caller before returning it. You might be screening calls for a business. Or you could be verifying a contact's identity before sharing personal information. Whatever your reason, our lookup tool can help.
FAQ
Where is area code 820?
The 820 area code covers California.
How do I check number in 820?
Enter the full 820 number into the lookup tool for caller details.