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 |
|---|---|---|---|---|---|---|
| 2026-08-21 | 548-850 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Feversham | — |
| 2026-08-21 | 548-944 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Lynden | — |
| 2026-01-09 | 548-660 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Flesherton | — |
| 2026-01-09 | 548-662 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Markdale | — |
| 2026-01-05 | 548-661 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Harrietsville | — |
| 2025-12-24 | 548-303 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Langton | — |
| 2023-02-08 | 548-677 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Arthur | — |
| 2023-02-08 | 548-707 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Palmerston | — |
| 2023-02-08 | 548-828 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Listowel | — |
| 2023-02-08 | 548-933 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Linwood | — |
| 2023-02-08 | 548-955 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Drayton | — |
| 2022-10-17 | 548-755 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Simcoe | — |
| 2021-06-22 | 548-622 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Grand Valley | — |
| 2021-05-25 | 548-322 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Drumbo | — |
| 2021-05-25 | 548-330 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Ilderton | — |
| 2020-05-19 | 548-722 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Waterford | — |
| 2020-05-14 | 548-522 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Elora | — |
| 2018-09-06 | 548-689 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | London | — |
| 2018-09-06 | 548-690 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | London | — |
| 2017-12-04 | 548-288 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Kitchener-Waterloo | — |
| 2017-12-04 | 548-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | London | — |
| 2017-12-04 | 548-880 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brantford | — |
| 2017-12-04 | 548-988 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Guelph | — |
| 2017-05-11 | 548-980 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Goderich | — |
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.