South Carolina · Eastern Time
864 Area Code
Area code 864 is in South Carolina, serving upstate South Carolina, including Greenville, Spartanburg and Anderson. It is in the Eastern Time zone. It shares its territory with overlay code 821, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 864 area code?
864 is a South Carolina area code covering upstate South Carolina, including Greenville, Spartanburg and Anderson. In the wider directory it sits in the South region.
Cities in the 864 area code
- Greenville
- Spartanburg
- Anderson
- Greer
- Mauldin
- Easley
- Simpsonville
- Greenwood
- Gaffney
- Clemson
- Seneca
- Laurens
- Union
Counties served by 864
Greenville County, Spartanburg County, Anderson County, Pickens County, Oconee County, Greenwood County, Laurens County, Cherokee County, Union County and Abbeville County.
864 overlay codes and dialing
The 864 territory is covered by an overlay of 2 area codes: 821, 864. All of them serve the same geographic area, and the original code is 864. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 864 area code
864 went into service on December 3, 1995, created when it was split from 803. It serves Greenville and the surrounding part of South Carolina, and today shares its territory with overlay code 821. For how codes are created, split, and overlaid, see how area codes work.
Is 864 a scam or spam risk?
864 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 864 number on your screen is no guarantee the caller is in Greenville, SC or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other South Carolina area codes
Explore more
See every code in South Carolina, compare codes across the South region, or view all Eastern Time codes. You can also browse the 8XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
864 area code FAQ
Where is the 864 area code?
The 864 area code is in South Carolina, covering upstate South Carolina, including Greenville, Spartanburg and Anderson, in the South region.
What cities are in the 864 area code?
Cities in the 864 area code include Greenville, Spartanburg, Anderson, Greer, Mauldin, Easley, Simpsonville, Greenwood, Gaffney and Clemson.
What time zone is 864 in?
864 is in the Eastern Time zone.
What is the overlay for the 864 area code?
864 shares its territory with 821. Both codes (821, 864) serve the same area, so 10-digit dialing is required for every call.
When did the 864 area code start?
864 went into service on December 3, 1995.
Do I have to dial 10 digits for 864?
Yes. Because 864 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 864 a toll-free or premium code?
No. 864 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.