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] | Relief date |
|---|---|---|---|---|
| 273 | 367/418/581 | Quebec | 2029 – 1st Qtr | February 27, 2027 [3] |
| 465 | 347/718/917/929 [4] | New York | 2027 – 3rd Qtr | June 18, 2026 [5] |
| 471 | 662 | Mississippi | 2027 – 3rd Qtr | January 30, 2026 [6] |
| 483 | 334 | Alabama | 2026 – 2nd Qtr | February 23, 2026 [7] [8] |
| 565 | 912 | Georgia | 2028 – 1st Qtr [9] | TBA |
| 761 | 502 | Kentucky | 2028 – 2nd Qtr [10] | TBA |
| 851 | 782/902 | Nova Scotia | 2031 – 2nd Qtr | TBA |
| NPA boundary changes, overlay expansions, etc. | ||||
| n/a | ||||