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] Projections of 2021 anticipated the requirement for an additional overlay area code for 2024 or 2025 in the Upstate region.[2][3] On November 28, 2022, NANPA set implementation dates for area code 821 January 2024 for that purpose.[4] When the new area code becomes effective, ten-digit dialing will be mandatory.

References
  1. South Carolina area codes
  2. "2022-1 NRUF and NPA Exhaust Analysis" (PDF). North American Numbering Plan Administrator. April 21, 2021. Retrieved April 24, 2021.
  3. "North American Numbering Plan Administrator Announces Plan for Additional Area Code in South Carolina". North American Numbering Plan Administrator. October 10, 2021. Retrieved October 10, 2021.
  4. "Planning Letter PL-606, NPA 821 and 864 All-Services Overlay (South Carolina)" (PDF). NANPA. 2022-11-28. Retrieved 2022-12-02.
South Carolina area codes: 803/839, 843/854, 864
North: 828, 704/980
West: 706/762 Area code 864 East: 803/839
South: 706
North Carolina area codes: 252, 336/743, 704/980, 828, 910, 919/984
Georgia area codes: 229, 404, 470/678, 478, 706/762, 770, 912
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