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
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Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2012-02-06 | 587-353 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Calgary | — |
| 2012-02-06 | 587-521 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Edmonton | — |
| 2012-01-26 | 587-646 | not yet reported which blocks → | TELUS Mobility | 8301 | Fort McMurray | — |
| 2012-01-26 | 587-647 | not yet reported which blocks → | TELUS Mobility | 8301 | Falher | — |
| 2012-01-24 | 587-679 | not yet reported which blocks → | TELUS Mobility | 8301 | Red Deer | — |
| 2012-01-06 | 587-732 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Athabasca | — |
| 2012-01-06 | 587-733 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Rocky Mountain House | — |
| 2012-01-06 | 587-736 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Stettler | — |
| 2012-01-06 | 587-737 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | High River | — |
| 2012-01-06 | 587-738 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Ponoka | — |
| 2012-01-06 | 587-739 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Cardston | — |
| 2012-01-05 | 587-272 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Red Deer | — |
| 2011-12-20 | 587-295 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2011-12-13 | 587-956 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2011-12-09 | 587-886 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2011-12-09 | 587-890 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Calgary | — |
| 2011-12-06 | 587-300 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | High Level | — |
| 2011-12-01 | 587-327 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2011-12-01 | 587-328 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2011-12-01 | 587-329 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2011-12-01 | 587-404 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2011-12-01 | 587-405 | not yet reported which blocks → | Iristel Inc. | 154E | Edmonton | — |
| 2011-11-23 | 587-901 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Calgary | — |
| 2011-11-23 | 587-902 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Calgary | — |
| 2011-11-23 | 587-903 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2011-11-15 | 587-275 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Fort McMurray | — |
| 2011-11-10 | 587-268 | not yet reported which blocks → | Bell West Inc. | 2933 | Stony Plain | — |
| 2011-11-01 | 587-259 | not yet reported which blocks → | TELUS | 8084 | Grande Prairie | — |
| 2011-11-01 | 587-322 | not yet reported which blocks → | TELUS Mobility | 8301 | Camrose | — |
| 2011-10-25 | 587-377 | not yet reported which blocks → | Bell Mobility | 6574 | Red Deer | — |
| 2011-10-25 | 587-516 | not yet reported which blocks → | TELUS Mobility | 8301 | Slave Lake | — |
| 2011-10-25 | 587-998 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| 2011-10-18 | 587-336 | not yet reported which blocks → | Bell Mobility | 6574 | Edmonton | — |
| 2011-10-18 | 587-343 | not yet reported which blocks → | Bell Mobility | 6574 | Grande Prairie | — |
| 2011-10-14 | 587-701 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Edmonton | — |
| 2011-10-14 | 587-702 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Calgary | — |
| 2011-10-11 | 587-773 | not yet reported which blocks → | Distributel | 081E | Edmonton | — |
| 2011-10-11 | 587-774 | not yet reported which blocks → | Distributel | 081E | Calgary | — |
| 2011-09-30 | 587-360 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Airdrie | — |
| 2011-09-30 | 587-361 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Canmore | — |
| 2011-09-30 | 587-362 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Cochrane | — |
| 2011-09-30 | 587-363 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | High River | — |
| 2011-09-30 | 587-364 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Okotoks | — |
| 2011-09-30 | 587-365 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Strathmore | — |
| 2011-09-28 | 587-257 | not yet reported which blocks → | TELUS Mobility | 8301 | Lethbridge | — |
| 2011-09-28 | 587-500 | not yet reported which blocks → | Videotron Ltd. | 383F | Calgary | — |
| 2011-09-26 | 587-873 | not yet reported which blocks → | TELUS Mobility | 8301 | Edmonton | — |
| 2011-09-26 | 587-879 | not yet reported which blocks → | TELUS Mobility | 8301 | Edmonton | — |
| 2011-09-23 | 587-267 | not yet reported which blocks → | Bell West Inc. | 2933 | Edson | — |
| 2011-09-23 | 587-920 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Edmonton | — |
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.