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 604
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2010-03-19 | 604-400 | not yet reported which blocks → | Videotron Ltd. | 383F | Whistler | — |
| 2010-02-26 | 604-379 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2010-02-12 | 604-365 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| 2010-02-12 | 604-366 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| 2010-02-12 | 604-367 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| 2010-02-12 | 604-368 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| 2010-02-12 | 604-369 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Vancouver | — |
| 2010-01-28 | 604-384 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Pemberton | — |
| 2010-01-14 | 604-458 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Pitt Meadows | — |
| 2010-01-14 | 604-481 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Haney | — |
| 2009-12-02 | 604-479 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Haney | — |
| 2009-11-04 | 604-391 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Chilliwack | — |
| 2009-10-30 | 604-564 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Vancouver | — |
| 2009-10-15 | 604-753 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2009-10-15 | 604-754 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2009-08-11 | 604-283 | not yet reported which blocks → | Fibernetics Corporation | 464D | Vancouver | — |
| 2009-07-08 | 604-600 | not yet reported which blocks → | Videotron Ltd. | 383F | Vancouver | — |
| 2009-07-08 | 604-700 | not yet reported which blocks → | Videotron Ltd. | 383F | Vancouver | — |
| 2009-06-18 | 604-475 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Port Coquitlam | — |
| 2009-06-16 | 604-772 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Aldergrove | — |
| 2009-06-09 | 604-447 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Richmond | — |
| 2009-06-09 | 604-496 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Whalley | — |
| 2009-06-09 | 604-544 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | New Westminster | — |
| 2009-06-08 | 604-510 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Langley | — |
| 2009-06-08 | 604-560 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | White Rock | — |
| 2009-06-08 | 604-593 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Newton | — |
| 2009-06-08 | 604-971 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | North Vancouver | — |
| 2009-05-04 | 604-549 | not yet reported which blocks → | TELUS | 8086 | New Westminster | — |
| 2009-04-28 | 604-350 | not yet reported which blocks → | Bell West Inc. | 2933 | Ladner | — |
| 2009-03-18 | 604-565 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Vancouver | — |
| 2009-02-18 | 604-349 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2008-12-15 | 604-547 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Newton | — |
| 2008-12-15 | 604-743 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Abbotsford | — |
| 2008-12-15 | 604-973 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | North 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 | — |
| 2008-11-23 | 604-348 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2008-10-21 | 604-284 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Richmond | — |
| 2008-10-21 | 604-289 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Mission | — |
| 2008-10-21 | 604-347 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2008-10-21 | 604-744 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Abbotsford | — |
| 2008-10-21 | 604-769 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Sardis | — |
| 2008-10-07 | 604-566 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Vancouver | — |
| 2008-09-17 | 604-800 | not yet reported which blocks → | Iristel Inc. | 154E | Vancouver | — |
| 2008-06-26 | 604-234 | not yet reported which blocks → | GT Group Telecom Services Corp. | 8506 | Richmond | — |
| 2008-06-26 | 604-235 | not yet reported which blocks → | GT Group Telecom Services Corp. | 8506 | Vancouver | — |
| 2008-06-26 | 604-237 | not yet reported which blocks → | GT Group Telecom Services Corp. | 8506 | New Westminster | — |
| 2008-05-29 | 604-346 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
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.