List of future North American area codes

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This is a list of future area codes in the North American Numbering Plan (NANP) in the planning stages for relief of central office code exhaustion in the given numbering plan areas (NPAs). The dates are subject to change during implementation as published in the official NANP Administrator Planning letters.

List

New area code Jurisdiction Affected NPA Projected Exhaust date* Effective date
227 Maryland 240/301 2023 – 2nd Qtr June 14, 2023[1]
235 Missouri 573 2024 – 3rd Qtr March 24, 2024[2]
274 Wisconsin 920 2024 – 1st Qtr May 5, 2023
283 Ohio 513 2023 – 4th Qtr April 28, 2023
324 Florida 904 2024 – 3rd Qtr February 26, 2024
327 Arkansas 870 2024 – 2nd Qtr February 20, 2024[3]
329 New York 845 2024 – 3rd Qtr March 24, 2023
353 Wisconsin 608 2024 – 1st Qtr September 15, 2023[4][5]
382 Ontario 519/226/548 2024 – 2nd Qtr June 17, 2023[6]
428 New Brunswick 506 2024 – 4th Qtr April 29, 2023[7]
436 Ohio 440 2024 – 3rd Qtr March 1, 2024[8]
624 New York 716 2024 – 2nd Qtr November 16, 2023[9]
645 Florida 305/786[10] 2023 – 4th Qtr August 4, 2023
679 Michigan 313 2025 – 3rd Qtr None
686 Virginia 804 2024 – 3rd Qtr February 1, 2024[11]
728 Florida 561 2023 – 4th Qtr March 10, 2023[12]
730 Illinois 618 2024 – 2nd Qtr July 7, 2023[13]
821 South Carolina 864 2025 – 1st Qtr January 19, 2024[14]
879 Newfoundland and Labrador 709 2028 – 2nd Qtr None
975 Missouri 816 2024 – 2nd Qtr October 13, 2023[15]

†Indicates planned overlay.

*Indicates exhaust date of the existing area code(s) that require relief.[16]

  • 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.[17]

See also

References

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  11. Planning Letter PL-608
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External links