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 |
|---|---|---|---|---|---|---|
| 2016-01-29 | 604-409 | not yet reported which blocks → | Iristel Inc. | 154E | Aldergrove | — |
| 2012-04-19 | 604-706 | not yet reported which blocks → | Iristel Inc. | 154E | West Vancouver | — |
| 2012-04-18 | 604-359 | not yet reported which blocks → | Iristel Inc. | 154E | New Westminster | — |
| 2012-04-18 | 604-373 | not yet reported which blocks → | Iristel Inc. | 154E | Richmond | — |
| 2012-03-22 | 604-337 | not yet reported which blocks → | Iristel Inc. | 154E | Richmond | — |
| 2012-02-29 | 604-332 | not yet reported which blocks → | Iristel Inc. | 154E | Richmond | — |
| 2012-02-09 | 604-265 | not yet reported which blocks → | Iristel Inc. | 154E | North Vancouver | — |
| 2012-02-09 | 604-305 | not yet reported which blocks → | Iristel Inc. | 154E | North Vancouver | — |
| 2011-12-22 | 604-256 | not yet reported which blocks → | Iristel Inc. | 154E | New Westminster | — |
| 2011-12-21 | 604-900 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2011-12-21 | 604-901 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2011-11-23 | 604-330 | not yet reported which blocks → | Iristel Inc. | 154E | Richmond | — |
| 2011-11-23 | 604-670 | not yet reported which blocks → | Iristel Inc. | 154E | West Vancouver | — |
| 2011-11-02 | 604-243 | not yet reported which blocks → | Iristel Inc. | 154E | North Vancouver | — |
| 2011-09-14 | 604-262 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2011-08-16 | 604-259 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2011-08-16 | 604-260 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2011-08-03 | 604-239 | not yet reported which blocks → | Iristel Inc. | 154E | New Westminster | — |
| 2010-11-23 | 604-245 | not yet reported which blocks → | Iristel Inc. | 154E | New Westminster | — |
| 2010-11-22 | 604-757 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2008-12-03 | 604-200 | not yet reported which blocks → | Iristel Inc. | 154E | New Westminster | — |
| 2008-12-03 | 604-210 | not yet reported which blocks → | Iristel Inc. | 154E | North Vancouver | — |
| 2008-12-03 | 604-227 | not yet reported which blocks → | Iristel Inc. | 154E | Richmond | — |
| 2008-12-03 | 604-229 | not yet reported which blocks → | Iristel Inc. | 154E | West Vancouver | — |
| 2008-09-17 | 604-800 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
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.