821 area code: location, overlays and numbers
In Greenville, South Carolina, the US telephone area code 821 has been in service since 2024 and shares an overlay with 864.
- Location
- Greenville, South Carolina
- Operating since
- 2024
- Time zone used
- Eastern time
- Overlay
- 864
- Calls within the area
- Full 10-digit dialling
- Rate centre list
- 66
- Expected exhaust
- 2054
- Code for the country
- +1 (United States)
Source: NANPA public reports. Both the area code report and the rate-centre report come from the file of 11/01/2026; the exhaust year is from NANPA projections 2026-1 (April 2026). Not an official NANPA site.
Get an 821 number
A 821 number can be reached by two routes. A new number comes with a provider plan, and you pick it at sign-up from the pool that provider holds in the code. Numbers a seller already holds, often with a pattern, are listed at a one-time price, and you later move the number to a provider.
Providers ranked by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers listing local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
Some sellers and providers may pay us a referral fee. The order stays by first-year cost, and it never changes. How we earn
Places in the 821 area code
For 821, NANPA lists 66 rate centres. Each one is a local calling area where numbers get assigned:
Abbeville, Anderson, Antioch, Belton and Blacksburg; Blue Ridge, Calhoun Falls, Campobello, Central and Chappells; Chesnee, Clarks Hill, Clemson, Clinton and Cowpens; Cross Hill, Due West, Easley, Enoree and Fountain Inn; Gaffney, Gray Court, Greenville, Greenwood and Greer; Hickory Tavern, Hodges, Honea Path, Inman and Iva; Joanna, Jonesville, Landrum, Laurens and Laurens Rural; Liberty, Lockhart, Lyman, Mccormick and Mountville; Mount Carmel, Ninety Six, Pacolet, Pelzer and Pendleton; Pickens, Piedmont, Plum Branch, Salem and Saluda; Seneca, Simpsonville, Six Mile, Spartanburg and Starr; Travelers Rest, Troy, Union, West Abbeville and Walhalla, plus 6 more.
Area codes related to this one
Same area, same pool of numbers: 864. Any of these codes can supply a new number in this area, so ask for the one you want.
South Carolina has other area codes as well: 843, 854, 803 and 839.
821 area code questions
Where is area code 821 located?
Calls to 821 ring in Greenville, South Carolina, around Greenville-Anderson-Greer, SC.
Which country code does a 821 number use?
+1. Calls from abroad use +1 821 plus the 7-digit number, since 821 belongs to the North American Numbering Plan.
What time is it in the 821 area code?
Eastern time applies to 821.
Who calls using a 821 number?
Callers with a number in this code include homes, mobiles, local businesses and people who fake a local number. When a 821 number appears on your screen, it shows where that number was assigned, rather than who is calling.