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 |
|---|---|---|---|---|---|---|
| 2017-05-26 | 613-367 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2015-04-20 | 613-505 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2012-03-21 | 613-519 | not yet reported which blocks → | Iristel Inc. | 154E | Kanata-Stittsville | — |
| 2012-02-09 | 613-604 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2012-02-09 | 613-912 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2011-11-28 | 613-900 | not yet reported which blocks → | Iristel Inc. | 154E | Kingston | — |
| 2011-09-23 | 613-209 | not yet reported which blocks → | Iristel Inc. | 154E | Cornwall | — |
| 2011-09-20 | 613-902 | not yet reported which blocks → | Iristel Inc. | 154E | Belleville | — |
| 2011-09-14 | 613-702 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2011-08-03 | 613-701 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2011-05-05 | 613-909 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2010-09-09 | 613-703 | not yet reported which blocks → | Iristel Inc. | 154E | Cornwall | — |
| 2010-09-09 | 613-704 | not yet reported which blocks → | Iristel Inc. | 154E | Brockville | — |
| 2010-09-09 | 613-706 | not yet reported which blocks → | Iristel Inc. | 154E | Smiths Falls | — |
| 2010-09-09 | 613-707 | not yet reported which blocks → | Iristel Inc. | 154E | Belleville | — |
| 2010-05-27 | 613-699 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2008-11-21 | 613-801 | not yet reported which blocks → | Iristel Inc. | 154E | Kanata-Stittsville | — |
| 2007-11-20 | 613-800 | not yet reported which blocks → | Iristel Inc. | 154E | Ottawa-Hull | — |
| 2007-10-23 | 613-777 | not yet reported which blocks → | Iristel Inc. | 154E | Kingston | — |
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.