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 263
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
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Dec 2025
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2026-01-22 | 263-376 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2025-07-18 | 263-378 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2025-07-18 | 263-379 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2025-04-16 | 263-387 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2025-02-11 | 263-255 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-266 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-355 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-366 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-550 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-552 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-556 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-558 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-566 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-660 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-662 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-668 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-766 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-866 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2025-02-11 | 263-966 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2024-12-05 | 263-385 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2024-12-05 | 263-386 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2024-08-19 | 263-363 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2024-07-15 | 263-383 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2024-07-15 | 263-384 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2024-05-27 | 263-362 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2024-04-23 | 263-382 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2024-01-22 | 263-381 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2024-01-09 | 263-993 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2024-01-04 | 263-380 | not yet reported which blocks → | Videotron Ltd. | 328F | Montreal | — |
| 2023-10-19 | 263-886 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-19 | 263-887 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-19 | 263-889 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-19 | 263-899 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-19 | 263-990 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-19 | 263-998 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-17 | 263-588 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-17 | 263-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-17 | 263-770 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-17 | 263-778 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-17 | 263-788 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-17 | 263-877 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-17 | 263-883 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-17 | 263-885 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-16 | 263-288 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-10-16 | 263-388 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2023-09-29 | 263-880 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Montreal | — |
| 2023-09-29 | 263-881 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Montreal | — |
| 2023-09-29 | 263-882 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Montreal | — |
| 2023-04-24 | 263-999 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2022-05-18 | 263-333 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Montreal | — |
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.