New Area Codes: 2021–2026 Timeline and Planned Codes
Updated: November 2026. Area code data: NANPA assignments via Simple Wikipedia and areacode.fyi, checked November 2026.
When a region runs out of phone numbers, NANPA adds a new area code — almost always as an overlay covering the same area, so nobody's existing number changes. This page lists the new codes added from 2021 to 2026, and the codes planned next.
New area codes, 2021–2026
| Year | New code | Area (code it overlays) | In service |
|---|---|---|---|
| 2021 | 771 | Washington, D.C. — overlay of 202 | 2021 |
| 2021 | 945 | Dallas, Texas — overlay of 214/972/469 | 2021 |
| 2021 | 447 | Central Illinois — overlay of 217 | 2021 |
| 2021 | 742 | Ontario Golden Horseshoe — overlay of 289/905 | 2021 |
| 2021 | 474 | Saskatchewan — overlay of 306/639 | 2021 |
| 2022 | 584 | Manitoba — overlay of 204/431 | 2022 |
| 2022 | 943 | Atlanta, Georgia — overlay of 404/678/470 | March 2022 |
| 2022 | 263 | Montreal, Quebec — overlay of 514/438 | October 22, 2022 |
| 2022 | 350 | Central California — overlay of 209 | 2022 |
| 2022 | 983 | Colorado — overlay of 303/720 | 2022 |
| 2022 | 683 | Ontario — overlay of 705/249 | 2022 |
| 2023 | 369 | Northern California — overlay of 707 | 2023 |
| 2023 | 227 | Western Maryland — overlay of 240/301 | June 14, 2023 |
| 2023 | 274 | Eastern Wisconsin — overlay of 920 | May 5, 2023 |
| 2023 | 283 | Southwest Ohio — overlay of 513 | April 28, 2023 |
| 2023 | 645 | Miami, Florida — overlay of 305/786 | 2023 |
| 2023 | 861 | West-central Illinois — overlay of 309 | 2023 |
| 2023 | 382 | Southwestern Ontario — overlay of 519/226/548 | 2023 |
| 2024 | 738 | Los Angeles, California — overlay of 213/323 | November 1, 2024 |
| 2024 | 924 | Southern Minnesota — overlay of 507 | August 30, 2024 |
| 2024 | 821 | Upstate South Carolina — overlay of 864 | August 19, 2024 |
| 2024 | 436 | Northeast Ohio — overlay of 440 | March 1, 2024 |
| 2024 | 324 | Jacksonville, Florida — overlay of 904 | February 26, 2024 |
| 2024 | 327 | Arkansas — overlay of 870 | February 20, 2024 |
| 2024 | 686 | Richmond, Virginia — overlay of 804 | February 1, 2024 |
| 2024 | 235 | Eastern Missouri — overlay of 573 | March 24, 2024 |
| 2025 | 357 | Fresno, California — overlay of 559 | March 26, 2025 |
| 2025 | 837 | Northern California — overlay of 530 | January 31, 2025 |
| 2025 | 621 | Houston, Texas — overlay of 713/281/832/346 | January 23, 2025 |
| 2025 | 679 | Detroit, Michigan — overlay of 313 | November 7, 2025 |
| 2025 | 457 | Louisiana — overlay of 318 | September 25, 2025 |
| 2025 | 729 | Tennessee — overlay of 423 | September 5, 2025 |
| 2025 | 748 | Colorado — overlay of 970 | July 7, 2025 |
| 2025 | 564 | Western Washington — overlay of 206/360 | June 10, 2025 |
| 2025 | 257 | British Columbia — overlay of 604/250/236/672/778 | May 24, 2025 |
| 2026 | 471 | Northern Mississippi — overlay of 662 | January 30, 2026 |
| 2026 | 483 | Southern Alabama — overlay of 334 | February 23, 2026 |
| 2026 | 465 | New York City outer boroughs — overlay of 347/718/917/929 | June 18, 2026 |
Codes linked above already have a full guide on this site. Codes shown without a link are covered here on this hub page and will get full guides and lookup entries on the next data refresh.
Codes planned next
- 565 — Georgia, overlay of 912 (Savannah area). NANPA Planning Letter PL-637 sets the earliest activation date as December 6, 2027, and new 565 numbers will only be assigned once all assignable prefixes in 912 are used up.
- 761 — Kentucky, overlay of 502 (Louisville area). Assigned in August 2025; implementation has been deferred and no firm in-service date has been set.
- 451 — North Carolina, overlay of 828. Assigned in September 2026; no in-service date has been announced yet.
- 273 — Quebec, relief for 418/581/367. Listed for February 27, 2027, described as reserved for relief.
Why new area codes appear
Every area code holds a limited supply of prefixes, and each prefix holds 10,000 numbers. Mobile phones, business lines and connected devices burn through them, so busy regions run out. The fix used to be a split — cutting the map in two and giving one half a new code, which forced millions of people to change numbers. Today the fix is nearly always an overlay: the new code covers exactly the same area as the old one, existing numbers stay the same, and only new lines get the new code. The trade-off is that 10-digit dialing becomes mandatory in the area.
For some overlays, new-code numbers are only handed out once the older codes run out — that applies to 465 in New York City and to the planned 565 in Georgia.
Sources
Dates above come from NANPA planning letters and the NANPA area-code database, as reported by Verizon's area-code guide and Wikipedia's list of North American Numbering Plan area codes, checked November 2026. If a date here disagrees with NANPA's current file, NANPA wins.
Related: 278 — a code that doesn't exist · 627 — a code that doesn't exist · Browse all area codes by state
FAQs
Why do new area codes appear?
Because a region runs out of phone numbers. Each area code holds a limited supply of prefixes, and when they run low, NANPA adds a new code — almost always as an overlay covering the same area.
Will my phone number change when a new area code is added?
No. Overlays do not change existing numbers. Only new lines get the new code. What usually changes is dialing: 10-digit dialing becomes mandatory in the area.
What is an overlay?
An overlay is a second (or third, or fourth) area code covering exactly the same geographic area as an existing one. Neighbors in the same city can then have different area codes.
How do I know if a new area code is real?
Check it here or against NANPA's records. A genuinely new code appears in NANPA planning letters with an in-service date. A code with no NANPA record — like 278 or 627 — is not in use, and calls showing it are almost certainly spoofed.
What codes are planned next?
565 for Georgia (912 area, earliest activation December 2027), 761 for Kentucky (502 area, date not set), 451 for North Carolina (828 area, date not set) and 273 for Quebec (listed for February 2027).
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