34°39′N 82°20′W / 34.650°N 82.333°W
Area codes 864 and 821 are telephone area codes in the North American Numbering Plan (NANP) for the western third of the U.S. state of South Carolina. The numbering plan area (NPA) comprises the areas of Greenville, Spartanburg, Anderson, and twelve surrounding counties. Other cities in the 864/821 territory include Clemson, Gaffney, Greer, and Mauldin. It is largely coextensive with the Upstate region.
Area code 864 was created in a division of numbering plan area 803 on December 3, 1995.[1]
Projections of 2021 anticipated the requirement of relief from telephone number exhaustion in the Upstate region with a new area code for 2024 or 2025.[2][3] On November 28, 2022, the NANP Administrator set the implementation target for area code 821 to mid-January 2024 by creation of an all-service overlay complex, approved by the Public Service Commission of South Carolina, requiring ten-digit dialing. Permissive calling started there and ten-digit dialing became mandatory in July 2024.[4] After mid-August 2024, new 821 numbers became assignable.
References
edit- ^ South Carolina area codes
- ^ "2022-1 NRUF and NPA Exhaust Analysis" (PDF). North American Numbering Plan Administrator. April 21, 2021. Retrieved April 24, 2021.
- ^ "North American Numbering Plan Administrator Announces Plan for Additional Area Code in South Carolina". PR Newswire. North American Numbering Plan Administrator. October 10, 2022. Retrieved October 10, 2022.
- ^ "Planning Letter PL-606, NPA 821 and 864 All-Services Overlay (South Carolina)" (PDF). NANPA. 2022-11-28. Retrieved 2022-12-02.
866
External links
edit| North: 828, 704/980 | ||
| West: 706/762 | 864/821 | East: 803/839 |
| South: 706 | ||
| North Carolina area codes: 252, 336/743, 704/980, 828, 910/472, 919/984 | ||
| Georgia area codes: 229, 404, 478, 678/470/943, 706/762, 770, 912 | ||
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