List of future North American area codes
This is a list of future area codes in the North American Numbering Plan, which are intended to be used as needed for additional telephone numbers in various locations. Relief formats and dates are subject to change. All new area codes below will be in the "overlay" format.
|New area code||Jurisdiction||Affected area codes||Exhaust date*||Effective date|
|227||Maryland||240, 301||2023 – 1st Qtr||None|
|274||Wisconsin||920||2025 – 3rd Qtr||None|
|283||Ohio||513||2019 – 4th Qtr||None|
|327||Arkansas||870||2020 – 4th Qtr||None|
|332||New York||212, 646||2017 - 4th Qtr||June 10, 2017|
|447||Illinois||217||2020 – 4th Qtr||None|
|464||Illinois||708||2017 – 2nd Qtr||None|
|564||Washington||360†||2017 – 1st Qtr||August 28, 2017|
|659||Alabama||205||2025 – 4th Qtr||None|
|679||Michigan||313||2021 – 1st Qtr||None|
|680||New York||315||2017 - 2nd Qtr||March 11, 2017|
|689||Florida||321, 407††||2018 – 4th Qtr||None|
|726||Texas||210||2017 – 3rd Qtr||October 1, 2017|
|730||Illinois||618||2021 – 3rd Qtr||None|
|838||New York||518||2017 - 3rd Qtr||None|
|879||Newfoundland and Labrador||709||2019 - 1st Qtr||None|
|986||Idaho||208||2017 – 1st Qtr||September 5, 2017|
†Plans are to overlay other codes, but initially it will overlay only the 360 area.
††Indicates planned overlay of multiple area code regions.
Note: While not listed above as no new area codes will be added, the 213 area code and the surrounding 323 in the Los Angeles area (currently separate) will merge into an overlay, as the boundary will be erased on August 1, 2017.
*Indicates exhaust date of the existing area code(s) that will require relief. Others with exhaust dates within 4 years (by mid-2020) that currently do not have an approved relief plan and relief area code: 214/469/972, 215/267, 440, 510, 609, 610/484, 619, 717, 805, 909, 916.
- "NPAs Exhausting in the Next 36 Months" (.xlsx). NANPA. 10 April 2015. Retrieved 10 April 2015.
- "NPA Exhaust Analysis" (PDF). NANPA. April 2016. Retrieved 24 June 2016.