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821 Area Code
Area code 821 serves Greenville, Spartanburg, Mauldin, Anderson, Simpsonville and nearby communities in South Carolina. It has been in service since August 19, 2024, when it was split from 864.
Who issues 821 numbers
Share of the 42 prefixes (the three digits after 821) assigned to each type of carrier. Classification by carrier name, approximate.
| Carrier | Prefixes |
|---|---|
| AT&T Mobility | 24 |
| Onvoy (Sinch) | 11 |
| Nuso | 1 |
| Metropcs | 1 |
| T-Mobile | 1 |
| Wavenation | 1 |
| Leap Telecom | 1 |
| Tpx Communications | 1 |
Cities and towns in area code 821
| City | Population | Other area codes |
|---|---|---|
| Greenville | 75,310 | 864 |
| Spartanburg | 39,978 | 864 |
| Mauldin | 31,465 | 864 |
| Anderson | 31,323 | 864 |
| Simpsonville | 28,459 | 864 |
| Greenwood | 22,745 | 864 |
| Wade Hampton | 20,703 | 864 |
| Five Forks | 19,093 | 864 |
| Clemson | 18,941 | 864 |
| Gantt | 15,057 | 864 |
| Gaffney | 12,583 | 864 |
| Parker | 12,564 | 864 |
| Powdersville | 11,321 | 864 |
| Seneca | 9,424 | 864 |
| Laurens | 9,327 | 864 |
| Welcome | 7,439 | 864 |
| Valley Falls | 7,249 | 864 |
| Homeland Park | 6,944 | 864 |
| Centerville | 6,860 | 864 |
| Clemson University | 6,434 | 864 |
| Piedmont | 5,786 | 864 |
Got a call from 821?
A 821 number was originally issued in South Carolina, but that does not prove the caller is there. 26% of 821 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.
All 42 prefixes in area code 821
Format: (821) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.
821-200AT&T Mobility · Laurens821-201AT&T Mobility · Greenwood821-202AT&T Mobility · Spartanburg821-203AT&T Mobility · Laurens821-204AT&T Mobility · Greenwood821-205AT&T Mobility · Laurens821-206AT&T Mobility · Greenwood821-207Nuso · Greenville821-208AT&T Mobility · Greenwood821-209AT&T Mobility · Greenwood821-210AT&T Mobility821-212Metropcs · Piedmont821-213AT&T Mobility · Laurens821-214AT&T Mobility · Seneca821-215T-Mobile · Anderson821-216AT&T Mobility · Spartanburg821-217Wavenation · Greenville821-218AT&T Mobility · Greenwood821-219AT&T Mobility · Greenwood821-220AT&T Mobility · Laurens821-221Leap Telecom · Greenville821-222Onvoy (Sinch) · Simpsonville821-223AT&T Mobility821-224AT&T Mobility · Greenwood821-225AT&T Mobility · Greenwood821-226Tpx Communications · Greenville821-227AT&T Mobility821-228AT&T Mobility · Greenwood821-229AT&T Mobility · Greenwood821-230AT&T Mobility · Greenwood821-333Onvoy (Sinch) · Spartanburg821-444Onvoy (Sinch) · Landrum821-529Onvoy (Sinch) · McCormick821-666Onvoy (Sinch) · Laurens821-777Onvoy (Sinch) · Anderson821-800Onvoy (Sinch) · Pacolet821-821Onvoy (Sinch) · Williamston821-864Onvoy (Sinch) · Joanna821-888Onvoy (Sinch) · Clemson821-997Verizon Wireless · Simpsonville821-998AT&T Mobility · Laurens821-999Onvoy (Sinch) · Gaffney
Questions about area code 821
- Where is area code 821?
- Area code 821 is in South Carolina. It covers Greenville, Spartanburg, Mauldin, Anderson, Simpsonville, Greenwood and 15 more cities and towns.
- What time zone is area code 821?
- Area code 821 is in the Eastern time zone.
- Is 821 a toll-free number?
- No. 821 is a geographic area code in South Carolina. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
- Why does 821 share its area with 864?
- 821 and 864 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.
- Will area code 821 run out of numbers?
- NANPA's latest forecast projects the 821/864 overlay to exhaust in the third quarter of 2054. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.