NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2001-12-21 | 905-530 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Thornhill | — |
| 2001-05-25 | 905-248 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Unionville | — |
| 2001-05-25 | 905-698 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Malton | — |
| 2001-05-25 | 905-756 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Cooksville | — |
| 2001-05-25 | 905-784 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Richmond Hill | — |
| 2000-12-01 | 905-598 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Brampton | — |
| 2000-08-14 | 905-360 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St. Catharines-Thorold | — |
| 2000-07-26 | 905-966 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Hamilton | — |
| 1999-10-22 | 905-347 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St. Catharines-Thorold | — |
| 1999-10-22 | 905-783 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Brampton | — |
| — | 905-324 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St. Catharines-Thorold | — |
| — | 905-325 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St. Catharines-Thorold | — |
| — | 905-341 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St. Catharines-Thorold | — |
| — | 905-348 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | St. Catharines-Thorold | — |
| — | 905-392 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Newmarket | — |
| — | 905-462 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Milton | — |
| — | 905-587 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Caledon East | — |
| — | 905-616 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Oakville | — |
| — | 905-617 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Oakville | — |
| — | 905-781 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Brampton | — |
| — | 905-782 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Brampton | — |
| — | 905-920 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Hamilton | — |
| — | 905-921 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Hamilton | — |
| — | 905-922 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Oshawa | — |
| — | 905-923 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Hamilton | — |
| — | 905-924 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Oshawa | — |
| — | 905-962 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Hamilton | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.