NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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 |
|---|---|---|---|---|---|---|
| 2022-09-22 | 506-493 | not yet reported which blocks → | Distributel | 081E | Cap-Pele | — |
| 2022-09-22 | 506-494 | not yet reported which blocks → | Distributel | 081E | Cocagne | — |
| 2022-09-22 | 506-510 | not yet reported which blocks → | Distributel | 081E | Doaktown | — |
| 2022-09-22 | 506-528 | not yet reported which blocks → | Distributel | 081E | Dorchester | — |
| 2022-09-22 | 506-535 | not yet reported which blocks → | Distributel | 081E | Memramcook | — |
| 2022-09-22 | 506-539 | not yet reported which blocks → | Distributel | 081E | Miramichi | — |
| 2022-09-22 | 506-554 | not yet reported which blocks → | Distributel | 081E | Neguac | — |
| 2022-09-22 | 506-561 | not yet reported which blocks → | Distributel | 081E | Richibucto | — |
| 2022-09-22 | 506-562 | not yet reported which blocks → | Distributel | 081E | Sackville | — |
| 2022-09-22 | 506-563 | not yet reported which blocks → | Distributel | 081E | Shediac | — |
| 2022-09-22 | 506-564 | not yet reported which blocks → | Distributel | 081E | Saint-Antoine | — |
| 2022-09-22 | 506-569 | not yet reported which blocks → | Distributel | 081E | Stanley | — |
| 2022-09-22 | 506-578 | not yet reported which blocks → | Distributel | 081E | St. Louis-de-Kent | — |
| 2022-09-21 | 506-316 | not yet reported which blocks → | Distributel | 081E | Keswick | — |
| 2022-09-21 | 506-418 | not yet reported which blocks → | Distributel | 081E | Chipman | — |
| 2022-09-21 | 506-437 | not yet reported which blocks → | Distributel | 081E | Fredericton | — |
| 2022-09-21 | 506-438 | not yet reported which blocks → | Distributel | 081E | Gagetown | — |
| 2022-09-21 | 506-439 | not yet reported which blocks → | Distributel | 081E | Harvey Station | — |
| 2022-09-21 | 506-483 | not yet reported which blocks → | Distributel | 081E | McAdam | — |
| 2022-09-21 | 506-489 | not yet reported which blocks → | Distributel | 081E | Minto | — |
| 2022-09-21 | 506-490 | not yet reported which blocks → | Distributel | 081E | Nackawic | — |
| 2022-09-21 | 506-491 | not yet reported which blocks → | Distributel | 081E | Oromocto | — |
| 2022-09-21 | 506-492 | not yet reported which blocks → | Distributel | 081E | Bouctouche | — |
| 2022-05-25 | 506-264 | not yet reported which blocks → | Distributel | 081E | Sussex | — |
| 2022-05-25 | 506-373 | not yet reported which blocks → | Distributel | 081E | St. Stephen | — |
| 2022-05-25 | 506-374 | not yet reported which blocks → | Distributel | 081E | St. George | — |
| 2022-05-24 | 506-318 | not yet reported which blocks → | Distributel | 081E | Saint John | — |
| 2022-05-24 | 506-319 | not yet reported which blocks → | Distributel | 081E | Rothesay | — |
| 2022-05-24 | 506-408 | not yet reported which blocks → | Distributel | 081E | St. Andrews | — |
| 2022-05-24 | 506-412 | not yet reported which blocks → | Distributel | 081E | Salisbury | — |
| 2022-05-24 | 506-413 | not yet reported which blocks → | Distributel | 081E | Springfield | — |
| 2022-05-20 | 506-376 | not yet reported which blocks → | Distributel | 081E | Hampton | — |
| 2022-05-20 | 506-398 | not yet reported which blocks → | Distributel | 081E | Grand Manan | — |
| 2022-05-20 | 506-402 | not yet reported which blocks → | Distributel | 081E | Petitcodiac | — |
| 2022-05-20 | 506-403 | not yet reported which blocks → | Distributel | 081E | Grand Bay-Westfield | — |
| 2022-05-20 | 506-410 | not yet reported which blocks → | Distributel | 081E | Maces Bay | — |
| 2018-06-05 | 506-571 | not yet reported which blocks → | Distributel | 081E | Albert | — |
| 2018-06-05 | 506-572 | not yet reported which blocks → | Distributel | 081E | Alma | — |
| 2018-06-05 | 506-573 | not yet reported which blocks → | Distributel | 081E | Hillsborough | — |
| 2018-06-05 | 506-574 | not yet reported which blocks → | Distributel | 081E | Port Elgin | — |
| 2016-11-08 | 506-317 | not yet reported which blocks → | Distributel | 081E | Moncton | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.