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.
Most active assignees, all time — NPA 587
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
May 2026
Apr 2026
Mar 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2012-07-09 | 587-296 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2012-06-28 | 587-703 | not yet reported which blocks → | Videotron Ltd. | 787G | Calgary | — |
| 2012-06-26 | 587-800 | not yet reported which blocks → | Iristel Inc. | 154E | Lethbridge | — |
| 2012-06-26 | 587-801 | not yet reported which blocks → | Iristel Inc. | 154E | Medicine Hat | — |
| 2012-06-26 | 587-802 | not yet reported which blocks → | Iristel Inc. | 154E | Red Deer | — |
| 2012-06-26 | 587-803 | not yet reported which blocks → | Iristel Inc. | 154E | Grande Prairie | — |
| 2012-06-20 | 587-294 | not yet reported which blocks → | TELUS | 8084 | Westlock | — |
| 2012-06-20 | 587-939 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2012-05-18 | 587-288 | not yet reported which blocks → | Fibernetics Corporation | 464D | Calgary | — |
| 2012-05-18 | 587-450 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Fort McMurray | — |
| 2012-04-26 | 587-955 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2012-04-18 | 587-414 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2012-04-18 | 587-415 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2012-04-18 | 587-416 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2012-04-17 | 587-315 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2012-04-17 | 587-316 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2012-04-17 | 587-317 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2012-04-05 | 587-445 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| 2012-04-05 | 587-446 | not yet reported which blocks → | TELUS Mobility | 8301 | Edmonton | — |
| 2012-04-05 | 587-447 | not yet reported which blocks → | TELUS Mobility | 8301 | Red Deer | — |
| 2012-04-04 | 587-320 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2012-04-03 | 587-318 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2012-04-03 | 587-319 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2012-04-03 | 587-412 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2012-04-03 | 587-413 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2012-03-27 | 587-258 | not yet reported which blocks → | TELUS | 8084 | Fort McMurray | — |
| 2012-03-22 | 587-437 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2012-03-20 | 587-409 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2012-03-20 | 587-410 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2012-03-13 | 587-269 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Sherwood Park | — |
| 2012-03-13 | 587-273 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Red Deer | — |
| 2012-03-13 | 587-274 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Leduc | — |
| 2012-03-13 | 587-276 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Fort McMurray | — |
| 2012-03-13 | 587-285 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Fort Saskatchewan | — |
| 2012-03-13 | 587-286 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Spruce Grove | — |
| 2012-03-13 | 587-289 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Medicine Hat | — |
| 2012-03-13 | 587-290 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | St. Albert | — |
| 2012-03-13 | 587-425 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Lethbridge | — |
| 2012-03-13 | 587-523 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Edmonton | — |
| 2012-03-09 | 587-283 | not yet reported which blocks → | TELUS Mobility | 8301 | Gift Lake | — |
| 2012-03-06 | 587-772 | not yet reported which blocks → | Distributel | 081E | Edmonton | — |
| 2012-03-01 | 587-287 | not yet reported which blocks → | Fibernetics Corporation | 464D | Calgary | — |
| 2012-03-01 | 587-487 | not yet reported which blocks → | Fibernetics Corporation | 464D | Edmonton | — |
| 2012-02-24 | 587-323 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2012-02-24 | 587-324 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2012-02-15 | 587-390 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Calgary | — |
| 2012-02-14 | 587-407 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2012-02-14 | 587-408 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2012-02-10 | 587-325 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2012-02-10 | 587-326 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
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.