What area code is 821?
Here's everything about it.
Instant lookup for the 821 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.
821 at a glance
Summary
Cities & regions served by 821
Greenville / Upstate (overlay)5 communities on record for 821.
Where 821 sits on the map
Overlay of 864Coverage area
About the 821 region
821 covers Greenville / Upstate in South Carolina, including Spartanburg, Anderson and Clemson. The code has been in service since 2024.
821 itself is an overlay: it shares its territory with 864 and was introduced when those codes ran low on new number combinations. New lines may receive either code, calls between them are local, and 10-digit dialing is required across the region.
Overlaid on 864.
Who called me from 821?
Community reports- Caller ID is trivially spoofed: an incoming call that displays 821 does not prove the caller is really in the 821 region or even in the United States.
- Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
- Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
- When a 821 call pressures you to act immediately, hang up and contact the organization directly through its official number.
Be the first to add a community report for a 821 number below.
Frequently asked questions
FAQWhat area code is 821?+–
821 is a telephone area code serving Greenville / Upstate in South Carolina, United States, in service since 2024.
Where is area code 821 located?+–
It covers Spartanburg, Anderson and Clemson in South Carolina.
What cities are in area code 821?+–
Major communities on record include Spartanburg, Anderson and Clemson. The code's territory spans the Greenville / Upstate region of South Carolina.
What time zone is 821?+–
821 observes Eastern (ET), which is UTC−5 / −4 DST and follows daylight saving time.
When did area code 821 start?+–
821 entered service in 2024. Its history: overlaid on 864.
Why does area code 821 exist?+–
821 is an overlay of 864: it covers the exact same territory and was introduced when the original code ran low on new number combinations. New lines may receive either code, calls between them are local, and 10-digit dialing applies.
Is 821 a scam area code?+–
Scam and robocall traffic can use any North American code, 821 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 821 number, and report anything suspicious.
Can I get a 821 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 821 number regardless of where you physically live, although in an overlaid region you may be assigned 864 instead.