NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/21/2026
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 |
|---|---|---|---|---|---|---|
| 2006-03-20 | 416-546 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Toronto | — |
| 2006-03-08 | 416-551 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Toronto | — |
| 2006-02-20 | 416-792 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Toronto | — |
| 2005-09-21 | 416-519 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Toronto | — |
| 2005-01-25 | 416-637 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Toronto | — |
| 2004-05-12 | 416-914 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Toronto | — |
| 2004-04-13 | 416-849 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Toronto | — |
| 2004-03-15 | 416-901 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Toronto | — |
| 2003-03-14 | 416-915 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Toronto | — |
| 2002-11-05 | 416-840 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Toronto | — |
| 2002-04-16 | 416-850 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Toronto | — |
| 2000-05-08 | 416-987 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Toronto | — |
| 2000-04-06 | 416-913 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Toronto | — |
| — | 416-916 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Toronto | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.