The following Numbering Plan Area (NPA) Relief Activity Schedule is based on planning letters received from the North American Numbering Plan Administrator (NANPA).
|
NPA Relief Activity Schedule |
||||||
|
Old NPA |
New NPA |
Affected Area |
Relief Type |
Start of Permissive Dialing |
Mandatory 10-Digit Dialing |
Start Date |
|
480, 602, 623 |
480/602/623 |
Arizona |
Boundary Elimination Overlay |
2/11/2023 (602 and 623 NPAs Only) |
8/12/2023 |
9/12/2023 |
|
870 |
327 |
Arkansas |
Overlay |
11/4/2023 |
5/4/2024 |
6/4/2024 |
|
305/768 |
645 |
Florida |
Overlay |
|
|
8/4/2023 |
|
618 |
730 |
Illinois |
Overlay |
|
|
7/7/2023 |
|
235 |
573 |
Missouri |
Overlay |
8/26/2023 |
2/24/2024 |
3/24/2024 |
|
904 |
324 |
Florida |
Overlay |
7/31/2023 |
|
2/26/2024 |
|
608 |
353 |
Wisconsin |
Overlay |
|
|
9/15/2023 |
|
864 |
821 |
South Carolina |
Overlay |
1/19/2024 |
7/19/2024 |
8/19/2024 |
|
716 |
624 |
New York |
Overlay |
|
|
11/16/2023 |
|
804 |
686 |
Virginia |
Overlay |
|
|
2/1/2024 |
|
440 |
436 |
Ohio |
Overlay |
|
|
3/1/2024 |
|
236/250/604/672/778 |
257 |
British Columbia |
Overlay |
|
|
5/24/2025 |
|
416/437/647 |
942 |
Ontario |
Overlay |
|
|
4/26/2025 |
|
213/323 |
738 |
California |
Overlay |
|
|
11/1/2024 |
Please Note: This schedule is subject to change depending on the capacity of the TFNRegistryTM and notifications from NANPA.
Modifications to this schedule have been highlighted in red.
Recently Completed NPA Relief Activities:
California NPA 350 to overlay 209.
California NPA 369 to overlay 707.
New York NPA 363 to overlay 561.
Illinois NPA 861 to overlay 309.
Wisconsin NPA 274 to overlay 920.
Maryland NPA 227 to overlay 240/301.
Ontario 382 to overlay 226/519/548.