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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2022-08-18 | 548-280 | not yet reported which blocks → | Distributel | 082E | Clinton | — |
| 2022-08-18 | 548-281 | not yet reported which blocks → | Distributel | 082E | Goderich | — |
| 2022-08-18 | 548-283 | not yet reported which blocks → | Distributel | 082E | Seaforth | — |
| 2022-08-18 | 548-284 | not yet reported which blocks → | Distributel | 082E | Wingham | — |
| 2018-05-02 | 548-770 | not yet reported which blocks → | Distributel | 082E | Woodslee | — |
| 2018-05-02 | 548-771 | not yet reported which blocks → | Distributel | 082E | Stoney Point | — |
| 2018-05-02 | 548-772 | not yet reported which blocks → | Distributel | 082E | Essex | — |
| 2018-05-02 | 548-773 | not yet reported which blocks → | Distributel | 082E | Harrow | — |
| 2018-05-02 | 548-774 | not yet reported which blocks → | Distributel | 082E | Maidstone | — |
| 2018-05-02 | 548-775 | not yet reported which blocks → | Distributel | 082E | Amherstburg | — |
| 2018-05-02 | 548-776 | not yet reported which blocks → | Distributel | 082E | Tecumseh | — |
| 2018-05-02 | 548-777 | not yet reported which blocks → | Distributel | 082E | La Salle | — |
| 2018-05-01 | 548-778 | not yet reported which blocks → | Distributel | 082E | Kingsville | — |
| 2018-05-01 | 548-779 | not yet reported which blocks → | Distributel | 082E | Belle River | — |
| 2018-05-01 | 548-780 | not yet reported which blocks → | Distributel | 082E | Emeryville | — |
| 2018-05-01 | 548-781 | not yet reported which blocks → | Distributel | 082E | McGregor | — |
| 2018-05-01 | 548-782 | not yet reported which blocks → | Distributel | 082E | Pleasant Park | — |
| 2018-05-01 | 548-783 | not yet reported which blocks → | Distributel | 082E | Comber | — |
| 2018-05-01 | 548-784 | not yet reported which blocks → | Distributel | 082E | Leamington | — |
| 2018-05-01 | 548-785 | not yet reported which blocks → | Distributel | 082E | Pelee Island | — |
| 2018-05-01 | 548-786 | not yet reported which blocks → | Distributel | 082E | Wheatley | — |
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.