🇺🇸 821 area code
Area code 821 covers Greenville, Spartanburg, Anderson and Greer and the surrounding area in South Carolina. It shares that territory with 864, so the same neighbourhood can have numbers in any of them. Enter an 821 number below for a free check before you call back.
- Location: Greenville, South Carolina
- Time zone: Eastern (UTC−5)
- In service since August 19, 2024
查询号码
首次查询即可得到有效性、运营商、线路类型和地区。
Area code 821 at a glance
Cities in the 821 overlay area
- Greenville
- Spartanburg
- Anderson
- Greer
- Greenwood
- Easley
- Simpsonville
- Seneca
- Gaffney
- Laurens
Is a 821 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so an 821 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing an 821 number to people in South Carolina because a local-looking call is more likely to be answered. If an 821 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 821
821 entered service on August 19, 2024, as an overlay on 864, which had run short of numbers.
It is part of the 821/864 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
Because 821 overlays the same ground, the cities listed are those of the codes it shares with.
Area codes
More area codes in South Carolina
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常见问题
Area code 821 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 821?
Area code 821 is in South Carolina, United States. It covers Greenville, Spartanburg, Anderson, Greer, Greenwood and Easley.
What time zone is area code 821?
821 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 821?
864 serves the same area as 821. Numbers in all of them are local to one another.
When did area code 821 start?
821 entered service on August 19, 2024, created from 864.
How do I find out who called me from 821?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 821?
If you live in or near South Carolina, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 821 callers who will not leave a message are best looked up before you call back.