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 |
|---|---|---|---|---|---|---|
| 2015-09-21 | 778-309 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Vancouver | — |
| 2013-06-27 | 778-377 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Vancouver | — |
| 2012-10-25 | 778-313 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Kelowna | — |
| 2012-10-25 | 778-314 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Abbotsford | — |
| 2011-06-08 | 778-264 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | North Vancouver | — |
| 2010-07-02 | 778-375 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Vancouver | — |
| 2009-12-16 | 778-410 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Victoria | — |
| 2009-08-27 | 778-374 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Vancouver | — |
| 2007-02-07 | 778-373 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Vancouver | — |
| 2006-06-27 | 778-263 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Ladner | — |
| 2004-08-05 | 778-391 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Whalley | — |
| 2004-08-03 | 778-234 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Richmond | — |
| 2004-08-03 | 778-372 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Vancouver | — |
| 2004-07-30 | 778-262 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | North Vancouver | — |
| 2004-07-30 | 778-312 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | New Westminster | — |
| 2004-07-30 | 778-612 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Newton | — |
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.