South Carolina · Eastern Time
839 Area Code
Area code 839 is in South Carolina, serving central South Carolina, including Columbia, Rock Hill, Sumter and Aiken. It is in the Eastern Time zone. It shares its territory with overlay code 803, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 839 area code?
839 is a South Carolina area code covering central South Carolina, including Columbia, Rock Hill, Sumter and Aiken. In the wider directory it sits in the South region.
Cities in the 839 area code
- Columbia
- Rock Hill
- Sumter
- Aiken
- Lexington
- Fort Mill
- Orangeburg
- North Augusta
- West Columbia
- Cayce
- Camden
- Lancaster
- Newberry
- York
Counties served by 839
Richland County, Lexington County, York County, Aiken County, Sumter County, Orangeburg County, Kershaw County, Lancaster County, Chester County and Newberry County.
839 overlay codes and dialing
The 839 territory is covered by an overlay of 2 area codes: 803, 839. All of them serve the same geographic area, and the original code is 803. 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 839 area code
839 went into service on May 26, 2020 as an overlay of 803, relieving number exhaustion in the Columbia area. Rather than splitting the region, the overlay lets existing customers keep their numbers while new lines draw from the added code. Learn more in our overlay guide.
Is 839 a scam or spam risk?
839 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 839 number on your screen is no guarantee the caller is in Columbia, 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
839 area code FAQ
Where is the 839 area code?
The 839 area code is in South Carolina, covering central South Carolina, including Columbia, Rock Hill, Sumter and Aiken, in the South region.
What cities are in the 839 area code?
Cities in the 839 area code include Columbia, Rock Hill, Sumter, Aiken, Lexington, Fort Mill, Orangeburg, North Augusta, West Columbia and Cayce.
What time zone is 839 in?
839 is in the Eastern Time zone.
What is the overlay for the 839 area code?
839 shares its territory with 803. Both codes (803, 839) serve the same area, so 10-digit dialing is required for every call.
When did the 839 area code start?
839 went into service on May 26, 2020 as an overlay of 803.
Do I have to dial 10 digits for 839?
Yes. Because 839 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 839 a toll-free or premium code?
No. 839 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.