NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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.
Most active assignees, all time — NPA 226
New assignments by month
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| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2016-05-26 | 226-681 | not yet reported which blocks → | Comwave Networks | 160G | Walkerton | — |
| 2016-05-26 | 226-682 | not yet reported which blocks → | Comwave Networks | 160G | Thornbury | — |
| 2015-06-09 | 226-699 | not yet reported which blocks → | Comwave Networks | 160G | Clinton | — |
| 2014-08-29 | 226-633 | not yet reported which blocks → | Comwave Networks | 160G | Stratford | — |
| 2014-07-30 | 226-278 | not yet reported which blocks → | Comwave Networks | 160G | Markdale | — |
| 2014-07-30 | 226-834 | not yet reported which blocks → | Comwave Networks | 160G | Bothwell | — |
| 2014-06-23 | 226-277 | not yet reported which blocks → | Comwave Networks | 160G | Owen Sound | — |
| 2014-05-15 | 226-730 | not yet reported which blocks → | Comwave Networks | 160G | Brantford | — |
| 2014-05-15 | 226-731 | not yet reported which blocks → | Comwave Networks | 160G | Lynden | — |
| 2014-05-15 | 226-732 | not yet reported which blocks → | Comwave Networks | 160G | Ohsweken | — |
| 2014-05-15 | 226-733 | not yet reported which blocks → | Comwave Networks | 160G | Paris | — |
| 2014-05-15 | 226-734 | not yet reported which blocks → | Comwave Networks | 160G | St. George | — |
| 2014-04-08 | 226-716 | not yet reported which blocks → | Comwave Networks | 160G | Alvinston | — |
| 2014-04-08 | 226-717 | not yet reported which blocks → | Comwave Networks | 160G | Port Lambton | — |
| 2014-04-08 | 226-718 | not yet reported which blocks → | Comwave Networks | 160G | Sarnia | — |
| 2014-04-08 | 226-719 | not yet reported which blocks → | Comwave Networks | 160G | Sombra | — |
| 2014-04-08 | 226-720 | not yet reported which blocks → | Comwave Networks | 160G | Watford | — |
| 2014-04-08 | 226-832 | not yet reported which blocks → | Comwave Networks | 160G | Tilbury | — |
| 2014-04-08 | 226-833 | not yet reported which blocks → | Comwave Networks | 160G | Wallaceburg | — |
| 2014-04-07 | 226-830 | not yet reported which blocks → | Comwave Networks | 160G | Chatham | — |
| 2014-04-07 | 226-831 | not yet reported which blocks → | Comwave Networks | 160G | Highgate | — |
| 2014-01-10 | 226-617 | not yet reported which blocks → | Comwave Networks | 160G | Comber | — |
| 2014-01-10 | 226-618 | not yet reported which blocks → | Comwave Networks | 160G | Stoney Point | — |
| 2014-01-10 | 226-619 | not yet reported which blocks → | Comwave Networks | 160G | Wheatley | — |
| 2014-01-10 | 226-620 | not yet reported which blocks → | Comwave Networks | 160G | Windsor | — |
| 2014-01-09 | 226-298 | not yet reported which blocks → | Comwave Networks | 160G | Acton | — |
| 2014-01-09 | 226-299 | not yet reported which blocks → | Comwave Networks | 160G | Guelph | — |
| 2013-05-15 | 226-670 | not yet reported which blocks → | Comwave Networks | 160G | Wardsville | — |
| 2013-05-15 | 226-690 | not yet reported which blocks → | Comwave Networks | 160G | Glencoe | — |
| 2013-04-09 | 226-616 | not yet reported which blocks → | Comwave Networks | 160G | Galt | — |
| 2013-04-09 | 226-632 | not yet reported which blocks → | Comwave Networks | 160G | Breslau | — |
| 2013-04-09 | 226-642 | not yet reported which blocks → | Comwave Networks | 160G | Ayr | — |
| 2013-04-09 | 226-686 | not yet reported which blocks → | Comwave Networks | 160G | Kitchener-Waterloo | — |
| 2013-04-09 | 226-696 | not yet reported which blocks → | Comwave Networks | 160G | Hespeler | — |
| 2012-11-30 | 226-680 | not yet reported which blocks → | Comwave Networks | 160G | London | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.