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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 506-336 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Shippagan | — |
| — | 506-337 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Shippagan | — |
| — | 506-339 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Chipman | — |
| — | 506-344 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Lameque | — |
| — | 506-356 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Plaster Rock | — |
| — | 506-357 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Oromocto | — |
| — | 506-358 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Saint-Isidore | — |
| — | 506-362 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Youngs Cove Road | — |
| — | 506-363 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Keswick | — |
| — | 506-364 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Sackville | — |
| — | 506-365 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Doaktown | — |
| — | 506-366 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Harvey Station | — |
| — | 506-367 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Stanley | — |
| — | 506-368 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton Junction | — |
| — | 506-369 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Boiestown | — |
| — | 506-372 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Salisbury | — |
| — | 506-375 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Hartland | — |
| — | 506-379 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Dorchester | — |
| — | 506-382 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Moncton | — |
| — | 506-383 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Moncton | — |
| — | 506-384 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Moncton | — |
| — | 506-385 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Oromocto | — |
| — | 506-386 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Moncton | — |
| — | 506-387 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Moncton | — |
| — | 506-388 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Moncton | — |
| — | 506-389 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Moncton | — |
| — | 506-391 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Florenceville | — |
| — | 506-392 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Florenceville | — |
| — | 506-393 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Tracadie | — |
| — | 506-394 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Tracadie | — |
| — | 506-395 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Tracadie | — |
| — | 506-422 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Oromocto | — |
| — | 506-423 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | St. Leonard | — |
| — | 506-432 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Sussex | — |
| — | 506-433 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Sussex | — |
| — | 506-434 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Sussex | — |
| — | 506-443 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-444 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-445 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Sainte-Anne-de-Madawaska | — |
| — | 506-446 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Oromocto | — |
| — | 506-447 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-449 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-450 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-451 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-452 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-453 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-454 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-455 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
| — | 506-456 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Blacks Harbour | — |
| — | 506-457 | not yet reported which blocks → | Aliant Telecom(NB) | 8090 | Fredericton | — |
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.