List of future North American area codes

This is a list of future area codes in the North American Numbering Plan, which are in the planning stages for area code relief in various numbering plan areas (NPAs). The assignment methods and dates are subject to change, but today, new area codes are typically assigned to overlay plans.

List
New area codeJurisdictionAffected NPAProjected Exhaust date*Effective date
227Maryland240/3012023 – 4th QtrNone
263Quebec514/4382023 – 4th QtrOctober 22, 2022
274Wisconsin9202023 – 4th QtrMarch 22, 2024 [1]
283Ohio5132023 – 4th QtrApril 28, 2023
327Arkansas8702025 – 1st QtrJune 4, 2024
329New York8452023 – 4th QtrNone
354Quebec450/5792023 – 2nd QtrOctober 22, 2022
363New York5162023 - 2nd QtrJanuary 20, 2023[2][3]
382Ontario519/226/5482025 - 1st QtrJune 17, 2023[4]
428New Brunswick5062024 – 2nd QtrApril 29, 2023[5]
468Quebec819/8732023 - 3rd QtrOctober 22, 2022
472North Carolina9102023 – 1st QtrOctober 7, 2022[6]
557Missouri3142022 – 3rd QtrAugust 12, 2022
584Manitoba204/4312023 - 2nd QtrOctober 29, 2022
645Florida305/786[7]2023 - 4th QtrMay 30, 2023[8]
679Michigan3132025 – 2nd QtrNone
683Ontario705/2492023 - 4th QtrJune 18, 2022
728Florida5612023 - 3rd QtrMarch 10, 2023[9]
730Illinois6182025 – 4th QtrNone
826Virginia5402022 – 2nd QtrJune 14, 2022
835Pennsylvania610/4842022 - 4th QtrSeptember 2, 2022
861Illinois3092023 – 2nd QtrFebruary 24, 2023
879Newfoundland and Labrador7092028 – 2nd QtrNone
948Virginia7572022 – 2nd QtrMay 9, 2022
975Missouri8162024 – 2nd QtrFebruary 10, 2023
983Colorado303/7202023 – 1st QtrJune 17, 2022

†Indicates planned overlay of multiple area code regions.

*Indicates exhaust date of the existing area code(s) that will require relief.[10]

Although not listed above as no new area codes will be implemented, Area code 480's boundary with area codes 602 and 623 will be eliminated on September 12, 2023, to provide relief to area codes 480 and 602.[11]

These area codes with exhaust dates within four years (by the end of 2025) that currently do not have an approved relief plan and relief area code:

See also

References
  1. https://www.areacodehelp.com/where/area_code_274.shtml
  2. https://www.areacodehelp.com/where/area_code_363.shtml
  3. "Nassau County Residents and Businesses Prepare for New 363 Area Code". Accessed 2022-01-24
  4. https://www.areacodehelp.com/where/area_code_382.shtml
  5. "Telecom Decision CRTC 2020-363".
  6. https://journalnow.com/news/state-and-regional/southeastern-n-c-gains-472-area-code-oct-7/article_cd9056ca-8855-11ec-b2ac-93d4e0e4c56f.html
  7. https://www.thenextmiami.com/miami-is-growing-new-telephone-area-code-645-added-on-top-of-305-786-to-meet-demand/#:~:text=To%20Meet%20Demand-,Miami%20Is%20Growing%3A%20New%20Telephone%20Area%20Code%20645%20Added%20On,305%20%26%20786%20To%20Meet%20Demand&text=The%20North%20American%20Numbering%20Plan,is%20645%2C%20the%20administrator%20announced.
  8. https://www.areacodehelp.com/where/area_code_645.shtml
  9. https://www.areacodehelp.com/area-code-news/area-code-changes.shtml
  10. "NPAs Exhausting in the Next 36 Months" (.xlsx). NANPA. 10 April 2015. Retrieved 10 April 2015.
  11. https://azcc.gov/news/2021/11/03/arizona-corporation-commission-november-open-meeting-highlights#:~:text=Commission%20Approves%20480%20Area%20Code%20Relief%20Plan&text=The%20Boundary%20Overlay%20will%20eliminate,between%20the%20affected%20area%20codes.
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