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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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2018-04-26 | 587-675 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Lomond | — |
| 2018-04-26 | 587-681 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Longview | — |
| 2018-04-26 | 587-684 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Milo | — |
| 2018-04-26 | 587-685 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Morley | — |
| 2018-04-26 | 587-690 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Nanton | — |
| 2018-04-26 | 587-692 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Okotoks | — |
| 2018-04-26 | 587-694 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Rockyford | — |
| 2018-04-26 | 587-696 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Standard | — |
| 2018-04-26 | 587-697 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Stavely | — |
| 2018-04-26 | 587-698 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Strathmore | — |
| 2018-04-26 | 587-699 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Banff | — |
| 2018-04-26 | 587-704 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Turner Valley | — |
| 2018-04-26 | 587-706 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Vulcan | — |
| 2018-04-26 | 587-808 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Acme | — |
| 2018-04-26 | 587-820 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Airdrie | — |
| 2018-04-26 | 587-867 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Bragg Creek | — |
| 2018-04-26 | 587-910 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Canmore | — |
| 2018-04-25 | 587-373 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Arrowwood | — |
| 2018-04-25 | 587-395 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Beiseker | — |
| 2018-04-25 | 587-396 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Blackie | — |
| 2018-04-25 | 587-428 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Carstairs | — |
| 2018-04-25 | 587-431 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Cayley | — |
| 2018-04-25 | 587-440 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Calgary | — |
| 2018-04-25 | 587-544 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Champion | — |
| 2018-04-25 | 587-551 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Cochrane | — |
| 2018-04-25 | 587-552 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Cremona | — |
| 2018-04-25 | 587-553 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Crossfield | — |
| 2018-04-25 | 587-556 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Exshaw | — |
| 2018-04-25 | 587-569 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Gleichen | — |
| 2018-04-25 | 587-641 | not yet reported which blocks → | IXICA Communications Inc. | 812H | High River | — |
| 2018-04-25 | 587-642 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Hussar | — |
| 2018-04-25 | 587-648 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Irricana | — |
| 2018-04-25 | 587-649 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Kananaskis | — |
| 2018-04-25 | 587-663 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Lake Louise | — |
| 2018-04-25 | 587-666 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Edmonton | — |
| 2018-04-25 | 587-667 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Langdon | — |
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.