NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
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 |
|---|---|---|---|---|---|---|
| 2007-08-14 | 289-200 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ajax-Pickering | — |
| 2007-08-14 | 289-208 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Burlington | — |
| 2007-08-14 | 289-209 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Dunnville | — |
| 2006-12-21 | 289-668 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | St. Catharines-Thorold | — |
| 2006-10-18 | 289-338 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Newmarket | — |
| 2006-02-23 | 289-244 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2005-10-25 | 289-407 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | St. Catharines-Thorold | — |
| 2005-10-14 | 289-404 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oshawa | — |
| 2001-11-28 | 289-237 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hamilton | — |
| 2001-07-05 | 289-242 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Oakville | — |
| 2001-05-11 | 289-331 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Dunnville | — |
| 2001-05-10 | 289-321 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Fort Erie | — |
| 2001-05-10 | 289-821 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Welland | — |
| 2001-01-29 | 289-241 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | St. Catharines-Thorold | — |
| 2001-01-29 | 289-251 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Cobourg | — |
| 2001-01-26 | 289-231 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Newmarket | — |
| 2001-01-15 | 289-221 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Aurora | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.