NumberResearchRecent prefix assignments
374 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 10/01/2026
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, last 30 days
New assignments by month
Oct 2026
Sep 2026
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Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 506-553 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | New Denmark | — |
| — | 506-557 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-558 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-575 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Nackawic | — |
| — | 506-576 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Cocagne | — |
| — | 506-577 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Cap-Pele | — |
| — | 506-592 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-622 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Miramichi | — |
| — | 506-623 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Miramichi | — |
| — | 506-624 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Miramichi | — |
| — | 506-627 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Miramichi | — |
| — | 506-631 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-632 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-633 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-634 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-635 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-636 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-637 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-638 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-639 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Saint John | — |
| — | 506-640 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-642 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-643 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-644 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-645 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-646 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-647 | not yet reported which blocks → | Bell Mobility Aliant | 329A | Saint John | — |
| — | 506-648 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-649 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-652 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-653 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-657 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-658 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-659 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Maces Bay | — |
| — | 506-662 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Grand Manan | — |
| — | 506-672 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-674 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-684 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Dalhousie | — |
| — | 506-685 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Dalhousie | — |
| — | 506-687 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Hoyt | — |
| — | 506-693 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-694 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-696 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint John | — |
| — | 506-725 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Allardville | — |
| — | 506-726 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Caraquet | — |
| — | 506-727 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Caraquet | — |
| — | 506-732 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Grande-Anse | — |
| — | 506-734 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Hillsborough | — |
| — | 506-735 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Edmundston | — |
| — | 506-736 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Edmundston | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 10/01/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.