List of future North American area codes

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]
851	782/902	Nova Scotia	2028 – 2nd Qtr	TBA
NPA boundary changes, overlay expansions, etc.
n/a

See also

• List of North American Numbering Plan area codes