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 |
|---|---|---|---|---|---|---|
| 2016-03-11 | 343-781 | not yet reported which blocks → | Distributel | 082E | Osgoode | — |
| 2016-03-11 | 343-783 | not yet reported which blocks → | Distributel | 082E | Plantagenet | — |
| 2016-03-11 | 343-784 | not yet reported which blocks → | Distributel | 082E | Richmond | — |
| 2016-03-11 | 343-785 | not yet reported which blocks → | Distributel | 082E | Rockland | — |
| 2016-03-11 | 343-786 | not yet reported which blocks → | Distributel | 082E | Russell | — |
| 2016-03-11 | 343-787 | not yet reported which blocks → | Distributel | 082E | Winchester | — |
| 2016-03-10 | 343-760 | not yet reported which blocks → | Distributel | 082E | Almonte | — |
| 2016-03-10 | 343-761 | not yet reported which blocks → | Distributel | 082E | Arnprior | — |
| 2016-03-10 | 343-762 | not yet reported which blocks → | Distributel | 082E | Bourget | — |
| 2016-03-10 | 343-763 | not yet reported which blocks → | Distributel | 082E | Carleton Place | — |
| 2016-03-10 | 343-764 | not yet reported which blocks → | Distributel | 082E | Carp | — |
| 2016-03-10 | 343-765 | not yet reported which blocks → | Distributel | 082E | Casselman | — |
| 2014-07-23 | 343-888 | not yet reported which blocks → | Distributel | 082E | Ottawa-Hull | — |
| 2014-02-11 | 343-344 | not yet reported which blocks → | Distributel | 082E | Kingston | — |
| 2013-10-30 | 343-925 | not yet reported which blocks → | Distributel | 082E | Ottawa-Hull | — |
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.