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 |
|---|---|---|---|---|---|---|
| 2023-06-09 | 683-801 | not yet reported which blocks → | Iristel Inc. | 154E | Algoma Mills | — |
| 2023-06-08 | 683-703 | not yet reported which blocks → | Iristel Inc. | 154E | Lindsay | — |
| 2023-05-18 | 683-302 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Elmvale | — |
| 2023-05-18 | 683-521 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Waubaushene | — |
| 2023-05-18 | 683-609 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Burleigh Falls | — |
| 2023-05-18 | 683-868 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Nephton | — |
| 2023-03-27 | 683-707 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Pefferlaw | — |
| 2023-03-27 | 683-929 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Udora | — |
| 2023-03-22 | 683-850 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Bethany | — |
| 2023-03-21 | 683-205 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Apsley | — |
| 2023-03-21 | 683-412 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Bailieboro | — |
| 2023-02-15 | 683-201 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Bluewater | — |
| 2023-02-15 | 683-477 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Christian Island | — |
| 2023-02-15 | 683-559 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Cookstown | — |
| 2023-02-15 | 683-780 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Creemore | — |
| 2023-01-19 | 683-685 | not yet reported which blocks → | Fibernetics Corporation | 464D | Orillia | — |
| 2023-01-19 | 683-686 | not yet reported which blocks → | Fibernetics Corporation | 464D | Wasaga Beach | — |
| 2023-01-18 | 683-684 | not yet reported which blocks → | Fibernetics Corporation | 464D | Alliston | — |
| 2022-08-11 | 683-777 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Lefroy | — |
| 2022-08-11 | 683-800 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Midland | — |
| 2022-08-11 | 683-888 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Sebright | — |
| 2022-08-11 | 683-900 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Borden-Angus | — |
| 2022-08-11 | 683-999 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Stayner | — |
| 2022-08-09 | 683-200 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Waubaushene | — |
| 2022-08-09 | 683-300 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Stroud | — |
| 2022-08-09 | 683-333 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Lafontaine | — |
| 2022-08-09 | 683-400 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Severn Bridge | — |
| 2022-08-09 | 683-444 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Cookstown | — |
| 2022-08-09 | 683-500 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Oro | — |
| 2022-08-09 | 683-600 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Elmvale | — |
| 2022-08-09 | 683-666 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Bluewater | — |
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.