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 |
|---|---|---|---|---|---|---|
| 2023-02-09 | 705-468 | not yet reported which blocks → | Iristel Inc. | 154E | Gravenhurst | — |
| 2016-01-29 | 705-710 | not yet reported which blocks → | Iristel Inc. | 154E | Gravenhurst | — |
| 2015-09-28 | 705-809 | not yet reported which blocks → | Iristel Inc. | 154E | Haliburton | — |
| 2015-06-15 | 705-702 | not yet reported which blocks → | Iristel Inc. | 154E | Lindsay | — |
| 2013-10-11 | 705-315 | not yet reported which blocks → | Iristel Inc. | 154E | Barrie | — |
| 2013-10-11 | 705-410 | not yet reported which blocks → | Iristel Inc. | 154E | Borden-Angus | — |
| 2013-10-11 | 705-413 | not yet reported which blocks → | Iristel Inc. | 154E | Orillia | — |
| 2012-08-29 | 705-535 | not yet reported which blocks → | Iristel Inc. | 154E | Huntsville | — |
| 2012-02-06 | 705-302 | not yet reported which blocks → | Iristel Inc. | 154E | Barrie | — |
| 2011-10-17 | 705-304 | not yet reported which blocks → | Iristel Inc. | 154E | Peterborough | — |
| 2011-09-20 | 705-910 | not yet reported which blocks → | Iristel Inc. | 154E | Sault Ste. Marie | — |
| 2011-08-29 | 705-980 | not yet reported which blocks → | Iristel Inc. | 154E | North Bay | — |
| 2011-08-05 | 705-806 | not yet reported which blocks → | Iristel Inc. | 154E | Sudbury | — |
| 2011-07-06 | 705-300 | not yet reported which blocks → | Iristel Inc. | 154E | Barrie | — |
| 2011-03-25 | 705-990 | not yet reported which blocks → | Iristel Inc. | 154E | Huntsville | — |
| 2010-09-13 | 705-996 | not yet reported which blocks → | Iristel Inc. | 154E | Parry Sound | — |
| 2010-09-10 | 705-995 | not yet reported which blocks → | Iristel Inc. | 154E | North Bay | — |
| 2010-09-10 | 705-998 | not yet reported which blocks → | Iristel Inc. | 154E | Sault Ste. Marie | — |
| 2008-11-21 | 705-230 | not yet reported which blocks → | Iristel Inc. | 154E | Borden-Angus | — |
| 2008-11-21 | 705-242 | not yet reported which blocks → | Iristel Inc. | 154E | Orillia | — |
| 2008-11-21 | 705-243 | not yet reported which blocks → | Iristel Inc. | 154E | Peterborough | — |
| 2007-12-19 | 705-999 | not yet reported which blocks → | Iristel Inc. | 154E | Barrie | — |
| 2007-10-23 | 705-805 | not yet reported which blocks → | Iristel Inc. | 154E | Sudbury | — |
| — | 705-482 | not yet reported which blocks → | Iristel Inc. | 154E | North Bay | — |
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.