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
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2014-08-19 | 587-472 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2014-08-15 | 587-661 | not yet reported which blocks → | Comwave Networks | 160G | Standard | — |
| 2014-08-15 | 587-662 | not yet reported which blocks → | Comwave Networks | 160G | Stavely | — |
| 2014-08-14 | 587-656 | not yet reported which blocks → | Comwave Networks | 160G | High River | — |
| 2014-08-14 | 587-657 | not yet reported which blocks → | Comwave Networks | 160G | Champion | — |
| 2014-08-14 | 587-658 | not yet reported which blocks → | Comwave Networks | 160G | Strathmore | — |
| 2014-08-14 | 587-659 | not yet reported which blocks → | Comwave Networks | 160G | Hussar | — |
| 2014-08-14 | 587-660 | not yet reported which blocks → | Comwave Networks | 160G | Nanton | — |
| 2014-08-13 | 587-650 | not yet reported which blocks → | Comwave Networks | 160G | Acme | — |
| 2014-08-13 | 587-651 | not yet reported which blocks → | Comwave Networks | 160G | Airdrie | — |
| 2014-08-13 | 587-652 | not yet reported which blocks → | Comwave Networks | 160G | Vulcan | — |
| 2014-08-13 | 587-653 | not yet reported which blocks → | Comwave Networks | 160G | Banff | — |
| 2014-08-13 | 587-654 | not yet reported which blocks → | Comwave Networks | 160G | Canmore | — |
| 2014-08-13 | 587-655 | not yet reported which blocks → | Comwave Networks | 160G | Carstairs | — |
| 2014-08-11 | 587-845 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2014-07-21 | 587-473 | not yet reported which blocks → | TELUS | 8084 | Edmonton | — |
| 2014-07-03 | 587-474 | not yet reported which blocks → | TELUS | 8084 | Beaumont | — |
| 2014-06-17 | 587-475 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2014-06-17 | 587-577 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| 2014-06-17 | 587-578 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| 2014-06-17 | 587-579 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| 2014-06-17 | 587-596 | not yet reported which blocks → | TELUS Mobility | 8301 | Edmonton | — |
| 2014-06-17 | 587-597 | not yet reported which blocks → | TELUS Mobility | 8301 | Edmonton | — |
| 2014-06-06 | 587-392 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Calgary | — |
| 2014-05-30 | 587-346 | not yet reported which blocks → | Bell Mobility | 6574 | Edmonton | — |
| 2014-05-30 | 587-348 | not yet reported which blocks → | Bell Mobility | 6574 | Grande Prairie | — |
| 2014-05-30 | 587-378 | not yet reported which blocks → | Bell Mobility | 6574 | Red Deer | — |
| 2014-05-30 | 587-833 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2014-05-30 | 587-919 | not yet reported which blocks → | Bell Mobility | 6574 | Fort McMurray | — |
| 2014-05-15 | 587-751 | not yet reported which blocks → | Comwave Networks | 160G | St. Albert | — |
| 2014-05-15 | 587-752 | not yet reported which blocks → | Comwave Networks | 160G | Grande Prairie | — |
| 2014-05-12 | 587-945 | not yet reported which blocks → | Bell Mobility | 6574 | Calgary | — |
| 2014-04-11 | 587-388 | not yet reported which blocks → | Comwave Networks | 160G | Lethbridge | — |
| 2014-04-11 | 587-680 | not yet reported which blocks → | Comwave Networks | 160G | Red Deer | — |
| 2014-04-11 | 587-750 | not yet reported which blocks → | Comwave Networks | 160G | Medicine Hat | — |
| 2014-04-11 | 587-860 | not yet reported which blocks → | Comwave Networks | 160G | Sherwood Park | — |
| 2014-04-10 | 587-543 | not yet reported which blocks → | Comwave Networks | 160G | Fort McMurray | — |
| 2014-04-09 | 587-356 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Calgary | — |
| 2014-04-09 | 587-526 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Edmonton | — |
| 2014-04-02 | 587-312 | not yet reported which blocks → | Bell West Inc. | 2933 | Lacombe | — |
| 2014-04-02 | 587-342 | not yet reported which blocks → | Bell West Inc. | 2933 | Taber | — |
| 2014-04-02 | 587-344 | not yet reported which blocks → | Bell West Inc. | 2933 | Sylvan Lake | — |
| 2014-04-01 | 587-307 | not yet reported which blocks → | Bell West Inc. | 2933 | Beaumont | — |
| 2014-04-01 | 587-308 | not yet reported which blocks → | Bell West Inc. | 2933 | Beaverlodge | — |
| 2014-04-01 | 587-309 | not yet reported which blocks → | Bell West Inc. | 2933 | Crossfield | — |
| 2014-04-01 | 587-339 | not yet reported which blocks → | Bell West Inc. | 2933 | Grand Centre | — |
| 2014-04-01 | 587-345 | not yet reported which blocks → | Bell West Inc. | 2933 | Edmonton International Airport | — |
| 2014-03-20 | 587-585 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| 2014-03-20 | 587-586 | not yet reported which blocks → | TELUS Mobility | 8301 | Calgary | — |
| 2014-03-18 | 587-537 | not yet reported which blocks → | TELUS | 8084 | Fort McMurray | — |
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.