821 area code
Area code 821 is in South Carolina. It covers Greenville, Spartanburg, Anderson and 63 other places: 74 ZIP codes in Greenville, Spartanburg, Anderson and 6 other counties. Local time there is , Eastern Time. In service since 2024 as an overlay: it covers the same area as 864, so a number from there can have either code.
- State
- South Carolina
- Time zone
- Eastern
- Largest city
- Greenville
- Overlays
- 864
- In service since
- 2024
- Rate centres
- 16
- Prefixes assigned
- 42 (420,000 numbers)
Who calls from a 821 number
NANPA records the carrier each block of 821 numbers is assigned to. Of the 318,000 821 numbers assigned, 81% are with mobile carriers (AT&T Mobility, Verizon Wireless and T-Mobile); 19% with cable, internet-calling, business and other carriers (Onvoy, Ahoi and Intrado Communications).
That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.
| Carrier | Kind | Share |
|---|---|---|
| AT&T Mobility | Mobile | 73% |
| Onvoy | Cable, VoIP, other | 9% |
| Verizon Wireless | Mobile | 6% |
| T-Mobile | Mobile | 2% |
| Ahoi | Cable, VoIP, other | 2% |
| Intrado Communications | Cable, VoIP, other | 2% |
An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.
Places in area code 821
The 15 places with a telephone rate centre of their own using 821, largest first. Each links to its ZIP codes.
| Place | ZIP codes | Population |
|---|---|---|
| Greenville, SC | 17 | 72,935 |
| Spartanburg, SC | 8 | 38,910 |
| Anderson, SC | 6 | 30,051 |
| Simpsonville, SC | 2 | 26,144 |
| Greenwood, SC | 4 | 22,536 |
| Clemson, SC | 4 | 18,072 |
| Gaffney, SC | 3 | 12,596 |
| Laurens, SC | 1 | 9,336 |
| Seneca, SC | 3 | 8,993 |
| Mc Cormick, SC | 2 | 7,597 |
| Piedmont, SC | 1 | 5,462 |
| Williamston, SC | 1 | 4,170 |
| Landrum, SC | 1 | 2,620 |
| Pacolet, SC | 1 | 2,419 |
| Joanna, SC | 1 | 1,306 |
Nearby places using 821
These places have no rate centre of their own in NANPA's records; the nearest one uses 821. Near an area-code boundary that can be wrong for part of a town.
- Mauldin
- Wade Hampton
- Five Forks
- Berea
- Gantt
- Boiling Springs
- Parker
- Valley Falls
- Sans Souci
- Centerville
- Clemson University
- Homeland Park
- Welcome
- Northlake
- Saxon
- Townville
- Southern Shops
- Whitney
- Dunean
- Arcadia
- Hilltop
- Golden Grove
- East Gaffney
- Arkwright
- Judson
- McCormick
- Ben Avon
- Reidville
- Watts Mills
- Fairforest
- Camp Croft
- Drayton
- Utica
- Sandy Springs
- Clifton
- Conestee
- Fair Play
- City View
- Startex
- Converse
- Pauline
- Newry
- Pacolet Mills
- Una
- Glenn Springs
- Glendale
- Central Pacolet
- Promised Land
- Willington
- Bradley
- Coronaca
ZIP codes in area code 821
74 ZIP codes in 34 towns, by the town each is mailed to, largest first. Each links to its own page.
Where 821 numbers are issued
NANPA's rate centres with the most 821 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.
| Rate centre | Place | Prefixes |
|---|---|---|
GREENWOOD | Greenwood | 12 |
LAURENS | Laurens | 7 |
GREENVILLE | Greenville | 4 |
LAURESRURL | — | 3 |
SPARTANBG | Spartanburg | 3 |
ANDERSON | Anderson | 2 |
Counties
The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.
- Greenville County (23)
- Spartanburg County (20)
- Anderson County (9)
- Greenwood County (5)
- Cherokee County (4)
- Oconee County (5)
- Laurens County (2)
- Pickens County (4)
- McCormick County (2)
Which code covers where you are now? What area code am I in? answers from your location.
Questions about area code 821
Where is area code 821?
Area code 821 is in South Carolina. It covers Greenville, Spartanburg, Anderson and 63 other places: 74 ZIP codes in Greenville, Spartanburg, Anderson and 6 other counties.
What ZIP codes are in area code 821?
74 ZIP codes, by the town each is mailed to: Greenville (17, 29601 to 29617), Spartanburg (8, 29301 to 29319), Anderson (6, 29621 to 29626), Mauldin (29662) and 30 more towns. The full list is on this page.
What time zone is area code 821 in?
Eastern time.
Is a 821 number a mobile or a landline?
It can be either. 81% of 821 numbers are assigned to mobile carriers and 0% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.
What area codes overlay 821?
864. They cover the same area as 821, so a new number there can be given any of them.
Does a 821 number mean the caller is in South Carolina?
Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 821 call can come from anywhere.
Other area codes in South Carolina
All 6 South Carolina area codes, by area, with the cities each covers
Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.
Cite this page
zipcodes.pro. “Area code 821.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/821
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