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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2009-06-08 | 403-926 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| 2009-02-11 | 403-672 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Olds | — |
| 2009-02-11 | 403-683 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Pincher Creek | — |
| 2008-11-18 | 403-957 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Medicine Hat | — |
| 2008-10-02 | 403-951 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Banff | — |
| 2008-10-02 | 403-953 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Canmore | — |
| 2008-09-10 | 403-918 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| 2008-08-25 | 403-925 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Brooks | — |
| 2008-08-25 | 403-929 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Lethbridge | — |
| 2007-03-15 | 403-401 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| 2006-11-29 | 403-400 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| 2002-01-09 | 403-890 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| 2001-10-17 | 403-891 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| 2001-08-10 | 403-889 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| 2000-08-23 | 403-383 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| 2000-07-14 | 403-307 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Red Deer | — |
| 2000-05-29 | 403-397 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| 1999-08-30 | 403-667 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| — | 403-399 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| — | 403-708 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Calgary | — |
| — | 403-714 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | 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.