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.
Most active assignees, all time — NPA 548
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Oct 2025
| 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 | — |
| 2026-05-14 | 548-844 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Stratford | — |
| 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 | — |
| 2021-12-16 | 548-557 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Guelph | — |
| 2021-11-09 | 548-332 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Windsor | — |
| 2021-07-19 | 548-331 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Simcoe | — |
| 2021-06-22 | 548-622 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Grand Valley | — |
| 2021-06-04 | 548-355 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Listowel | — |
| 2021-06-04 | 548-550 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Listowel | — |
| 2021-06-04 | 548-551 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Listowel | — |
| 2021-06-04 | 548-552 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Listowel | — |
| 2021-06-04 | 548-553 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Listowel | — |
| 2021-06-04 | 548-556 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Listowel | — |
| 2021-05-26 | 548-336 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Mount Forest | — |
| 2021-05-26 | 548-337 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Mount Forest | — |
| 2021-05-26 | 548-339 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Mount Forest | — |
| 2021-05-26 | 548-533 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Mount Forest | — |
| 2021-05-26 | 548-633 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Mount Forest | — |
| 2021-05-26 | 548-733 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Mount Forest | — |
| 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 | — |
| 2021-05-25 | 548-335 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Mount Forest | — |
| 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 | — |
| 2019-12-20 | 548-255 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Kitchener-Waterloo | — |
| 2019-09-11 | 548-585 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Stratford | — |
| 2019-09-11 | 548-686 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Tavistock | — |
| 2019-09-11 | 548-787 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Thornbury | — |
| 2019-09-04 | 548-282 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | St. George | — |
| 2019-09-04 | 548-383 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Shakespeare | — |
| 2019-09-04 | 548-877 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Owen Sound | — |
| 2019-09-04 | 548-899 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Paris | — |
| 2019-09-03 | 548-866 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | London | — |
| 2019-09-03 | 548-889 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Kitchener-Waterloo | — |
| 2019-08-30 | 548-668 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Hespeler | — |
| 2019-08-28 | 548-558 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Galt | — |
| 2019-08-28 | 548-855 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Guelph | — |
| 2019-08-27 | 548-833 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Breslau | — |
| 2019-08-26 | 548-338 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Brantford | — |
| 2019-08-23 | 548-822 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Ayr | — |
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.