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 647
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 |
|---|---|---|---|---|---|---|
| 2024-08-13 | 647-257 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2024-08-13 | 647-584 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-12-23 | 647-365 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-12-23 | 647-424 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-12-23 | 647-474 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-12-23 | 647-905 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-05-01 | 647-373 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-05-01 | 647-374 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-05-01 | 647-375 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-04-30 | 647-370 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-04-30 | 647-371 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2019-04-30 | 647-372 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2017-09-22 | 647-363 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-17 | 647-556 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-17 | 647-557 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-17 | 647-558 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-17 | 647-559 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-17 | 647-560 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-03 | 647-951 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-03 | 647-952 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-03 | 647-953 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-03 | 647-954 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-03 | 647-956 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-04-03 | 647-957 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-495 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-496 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-498 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-499 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-503 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-01-20 | 647-490 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-01-20 | 647-491 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-01-20 | 647-492 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-01-20 | 647-493 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-01-20 | 647-494 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-11-28 | 647-691 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-11-28 | 647-692 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-11-28 | 647-693 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-09-14 | 647-362 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-08-10 | 647-360 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-08-10 | 647-361 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-04-06 | 647-694 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-04-06 | 647-695 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-04-06 | 647-696 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-04-06 | 647-697 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-04-06 | 647-699 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2011-04-06 | 647-797 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2010-11-11 | 647-930 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2010-11-11 | 647-931 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2010-11-11 | 647-932 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2010-09-14 | 647-799 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
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.