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Area code 821

Area code 821 Greenwood, South Carolina

Area code 821 is one of the newer area codes, added in 2024 to South Carolina, with numbers assigned in Greenwood, Laurens, Greenville and 12 more places. It’s 12:14 AM there now.

State
South Carolina6 area codes in South Carolina
Time zone
Eastern12:14 AM there now
Exchanges
4215 places
Overlay
864Same area, 10-digit dialing
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Where area code 821 is

Numbers in 821 are assigned to 15 places in 9 counties: Greenwood County, Laurens County, Greenville County, Spartanburg County, Anderson County, Oconee County, plus 3 more.

Greenwood has the most, 29% of the exchanges; the rest are spread across 14 other places.

  • Greenwood12
  • Laurens7
  • Greenville4
  • Spartanburg3
  • Anderson2
  • Simpsonville2
  • Piedmont1
  • Seneca1
  • Landrum1
  • McCormick1
  • Pacolet1
  • Williamston1
  • Joanna1
  • Clemson1
  • Gaffney1

Phone companies in 821

42 blocks of numbers in 821 are held by 9 phone companies. The most belong to AT&T Mobility (24), Inteliquent (9) and T-Mobile (2).

Mostly mobile: about 64% of blocks belong to wireless networks, 5% to local phone and cable companies and 31% to other carriers, such as internet phone services.

A block’s holder is the company it was first assigned to; numbers can move to other carriers since.

History and overlays

821 went into service in 2024, added to the area of 864.

864 (since 1995) shares the same area, so a new number there can get any of these codes and local calls are dialed with all 10 digits.

42 new exchanges were assigned since 2021, the latest in August 2026.

Calling 821

It’s 12:14 AM Eastern time in 821 right now.

From elsewhere in the U.S., dial 1, 821 and the 7-digit number; inside the area, all 10 digits too.

Nearby area codes

South Carolina has 6 area codes: 803, 821, 839, 843, 854 and 864.

From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.

Map of the 821 area code

Map of the 821 area code around Greenwood, Laurens and Greenville, South Carolina.

Interactive map © OpenStreetMap contributors

Cities on the map

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Questions about 821

Where is area code 821?

In South Carolina, covering Greenwood, Laurens and Greenville and other places across 9 counties.

What time zone is 821 in?

Eastern time. It was 12:14 AM there when this page loaded.

Is 821 an overlay?

Yes. 864 serves the same area, so dial all 10 digits for local calls.

Which phone companies have 821 numbers?

9 companies hold blocks; the most belong to AT&T Mobility, Inteliquent and T-Mobile. About 64% of blocks are wireless.

Is 821 running out of numbers?

Not on record. 42 new exchanges have been assigned since 2021.