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 |
367/418/581 |
273 |
Eastern Quebec |
Overlay |
5/27/2026 |
11/27/2026 |
2/27/2027 |
912 |
565 |
Georgia |
Overlay |
3/11/2027 |
10/8/2027 |
12/6/2027 |
368/403/587/780/825 |
568 |
Alberta |
Overlay |
9/10/2027 |
3/10/2028 |
6/10/2028 |
782/902 |
851 |
Nova Scotia and Prince Edward Island |
Overlay |
N/A |
5/27/2028 |
N/A |
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:
Ontario NPA 942 to overlay 416/437/647
California NPA 357 to overlay 559
Tennessee NPA 729 to overlay 423
California NPA 738 to overlay 213/323
Mississippi NPA 471 to overlay 662