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 |
|
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 |
|
318 |
457 |
Louisiana |
Overlay |
2/24/2025 |
8/25/2025 |
9/25/2025 |
|
313 |
679 |
Michigan |
Overlay |
4/7/2025 |
10/7/2025 |
11/7/2025 |
|
423 |
729 |
Tennessee |
Overlay |
8/5/2024 |
2/5/2025 |
3/5/2025 |
|
206 |
564 |
Washington |
Overlay |
|
|
4/5/2025 |
|
530 |
837 |
California |
Overlay |
11/26/2024 |
4/30/2024 |
1/31/2025 |
|
709 |
879 |
Newfoundland & Labrador |
Overlay |
|
|
2/17/2024 |
|
281/346/713/832 |
621 |
Texas |
Overlay |
4/23/2024 |
11/18/2024 |
1/23/2025 |
|
559 |
357 |
California |
Overlay |
7/26/2024 |
2/26/2025 |
3/26/2025 |
|
970 |
748 |
Colorado |
Overlay |
|
|
7/7/2025 |
|
334 |
483 |
Alabama |
Overlay |
7/23/2025 |
1/23/2026 |
2/23/2026 |
|
662 |
471 |
Mississippi |
Overlay |
4/30/2025 |
11/25/2025 |
1/30/2026 |
Please Note: This schedule is subject to change depending on the capacity of the TFNRegistry™ and notifications from NANPA.
Modifications to this schedule have been highlighted in red.
Recently Completed NPA Relief Activities:
Wisconsin NPA 274 to overlay 920.
Maryland NPA 227 to overlay 240/301.
Ontario NPA 382 to overlay 226/519/548.
Florida NPA 645 to overlay 305/786.
Illinois NPA 730 to overlay 618.
Wisconsin NPA 608 to overlay 353.
Arizona NPA 480, 602, 623 Boundary Elimination Overlay.
New York 624 to overlay 716.
Virginia NPA 686 to overlay 804.
Florida NPA 324 to overlay 904.
Ohio NPA 436 to overlay 440.
Missouri NPA 235 to overlay 573.
Arkansas NPA 327 to overlay 870.
South Carolina NPA 821 to overlay 864.
Minnesota NPA 924 to overlay 507