This is a list of future area codes in the North American Numbering Plan (NANP) that are either reserved or in a planning stage for relief of central office code exhaustion in their parent numbering plan area (NPA). The dates are subject to change during implementation as published in the official NANP Administrator Planning Letters.
New area code Affected NPA Jurisdiction Projected exhaust date[1][2] Effective date 273 367/418/581 Quebec 2027 – 3rd Qtr TBA 457 318 Louisiana 2026 – 3rd Qtr September 25, 2025[3] 465 347/718/917/929[4] New York 2026 – 4th Qtr June 18, 2026[5] 471 662 Mississippi 2027 – 3rd Qtr January 30, 2026[6] 483 334 Alabama 2026 – 3rd Qtr February 23, 2026[7][8] 565 912 Georgia 2028 – 2nd Qtr[9] TBA 679 313 Michigan 2028 – 1st Qtr November 7, 2025[10] 729 423 Tennessee 2026 – 3rd Qtr September 5, 2025[11] 761 502 Kentucky 2027 – 3rd Qtr[12] TBA 851 782/902 Nova Scotia 2028 – 2nd Qtr TBA NPA boundary changes, overlay expansions, etc. n/a See also[edit] List of North American Numbering Plan area codes References[edit] ^ "NPAs Exhausting in the Next 36 Months" (.xlsx). NANPA. 2015-04-10. Retrieved 10 April 2015. ^ "Planned NPAs Not Yet in Service" (.do). North American Numbering Plan Administrator (NANPA). Retrieved 9 July 2025. ^ "Planning Letter 617: NPA 457 to Overlay NPA 318 (Louisiana)" (PDF). NANPA. 23 June 2023. Retrieved 16 July 2024. ^ https://pix11.com/news/local-news/nycs-new-area-code-revealed-see-what-its-replacing/ [bare URL] ^ "Planning Letter 630: NPA 465 and 347/718/917/929 All-Services Overlay (New York)" (PDF). NANPA. 2025-03-26. Retrieved 2025-03-26. ^ "Planning Letter 627: NPA 471 and 662 All-Services Overlay (Mississippi)" (PDF). NANPA. 2024-08-19. Retrieved 2025-04-18. ^ "NANPA Planning Letter 626 – NPA 483 to Overlay NPA 334 (Alabama)" (PDF). NANPA. 7 May 2024. Retrieved 16 July 2024. ^ "Area Code 483 - Details, official location, official service date, history and time zone". ^ "Georgia Gets 11th Area Code" (PDF). 2025-06-10. ^ "Planning Letter 618: NPA 679 to Overlay NPA 313 (Michigan)" (PDF). NANPA. 13 July 2023. Retrieved 16 July 2024. ^ "Planning Letter 619: NPA 729 to Overlay NPA 423 (Tennessee)" (PDF). NANPA. 24 July 2023. Retrieved 16 July 2024. ^ Cole, Lucy (2025-08-19). "New area code for 502 region announced". www.wkyt.com. Retrieved 2025-08-19. External links[edit] "2025-1 NRUF and NPA Exhaust Analysis" (PDF). NANPA. 2024-04-28. Retrieved 2025-05-04. NPA Relief Planning Reports Canadian Numbering Administrator (CNA) Canadian Steering Committee on Numbering (CSCN)