Area code 864

Area code 864 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of South Carolina. The numbering plan area (NPA) comprises the areas of Greenville, Spartanburg, Anderson, and twelve surrounding counties in upstate South Carolina. Other cities in the 864 territory include Clemson, Gaffney, Greer and Mauldin.

The area code was split from area code 803 on December 3, 1995.[1] Until then, South Carolina had been one of the most populous states served by just one area code. When area code 803 overlaid area code 839 in May 2020, 864 became the last area of South Carolina that has not been overlaid. As such, it is one of the few urbanized area codes where seven-digit dialing is still possible. Under projections of 2020, it will likely stay that way at least through 2029.[2]