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 506
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2026-07-20 | 506-666 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Grand Manan | — |
| 2022-10-11 | 506-680 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Doaktown | — |
| 2022-10-07 | 506-772 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Stanley | — |
| 2022-10-07 | 506-868 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Boiestown | — |
| 2021-05-25 | 506-771 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Browns Flat | — |
| 2019-12-02 | 506-552 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Saint John | — |
| 2019-09-11 | 506-281 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Saint-Antoine | — |
| 2019-09-11 | 506-585 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Salisbury | — |
| 2019-09-11 | 506-677 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Sussex | — |
| 2019-09-10 | 506-299 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Memramcook | — |
| 2019-09-10 | 506-322 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Cocagne | — |
| 2019-09-10 | 506-550 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Port Elgin | — |
| 2019-09-10 | 506-551 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Hillsborough | — |
| 2019-09-10 | 506-556 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Miramichi | — |
| 2019-09-10 | 506-559 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Petitcodiac | — |
| 2019-09-10 | 506-668 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Fredericton | — |
| 2019-09-10 | 506-722 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Dorchester | — |
| 2019-09-10 | 506-881 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Bathurst | — |
| 2019-09-10 | 506-885 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Cap-Pele | — |
| 2019-09-10 | 506-933 | not yet reported which blocks → | Rogers Communications Canada Inc. | 571G | Edmundston | — |
| 2018-09-06 | 506-883 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Fredericton | — |
| 2018-02-21 | 506-288 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Saint John | — |
| 2017-12-18 | 506-886 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Saint John | — |
| 2017-12-14 | 506-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Moncton | — |
| 2013-04-30 | 506-830 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Moncton | — |
| 2011-06-17 | 506-998 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Fredericton | — |
| 2011-03-07 | 506-821 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Clair | — |
| 2011-03-07 | 506-822 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Baker Brook | — |
| 2011-03-07 | 506-823 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Sainte-Anne-de-Madawaska | — |
| 2011-03-07 | 506-824 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | St. Leonard | — |
| 2011-03-07 | 506-825 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | New Denmark | — |
| 2010-09-28 | 506-820 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Chipman | — |
| 2010-08-19 | 506-819 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Perth-Andover | — |
| 2010-08-06 | 506-817 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Minto | — |
| 2010-08-06 | 506-818 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Nackawic | — |
| 2010-07-02 | 506-815 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | St. George | — |
| 2010-07-02 | 506-816 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Blacks Harbour | — |
| 2010-06-18 | 506-813 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | St. Stephen | — |
| 2010-06-18 | 506-814 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | St. Andrews | — |
| 2010-06-17 | 506-988 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Moncton | — |
| 2010-06-04 | 506-812 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Meductic | — |
| 2009-10-30 | 506-330 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Neguac | — |
| 2009-06-29 | 506-347 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Harvey Station | — |
| 2009-06-29 | 506-348 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Fredericton Junction | — |
| 2009-06-29 | 506-590 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | McAdam | — |
| 2009-06-29 | 506-595 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Florenceville | — |
| 2009-06-29 | 506-596 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Hartland | — |
| 2009-06-25 | 506-594 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Woodstock | — |
| 2009-06-25 | 506-598 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Saint-Isidore | — |
| 2009-06-25 | 506-599 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Lameque | — |
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.