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 |
|---|---|---|---|---|---|---|
| 2022-10-18 | 249-260 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Elliot Lake | — |
| 2022-10-17 | 249-512 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Azilda | — |
| 2022-10-17 | 249-513 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Garson | — |
| 2022-10-17 | 249-514 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Hanmer | — |
| 2022-10-17 | 249-616 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Borden-Angus | — |
| 2022-10-17 | 249-617 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Brechin | — |
| 2022-10-17 | 249-618 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Moonstone | — |
| 2022-10-17 | 249-941 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Stroud | — |
| 2022-07-11 | 249-902 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Buckhorn | — |
| 2022-07-11 | 249-903 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Omemee | — |
| 2022-01-17 | 249-576 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Bridgenorth | — |
| 2022-01-17 | 249-577 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Norwood | — |
| 2021-11-08 | 249-297 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Warkworth | — |
| 2021-11-08 | 249-298 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Havelock | — |
| 2021-02-18 | 249-520 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Oro | — |
| 2021-02-18 | 249-521 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Penetanguishene | — |
| 2021-02-17 | 249-517 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Hastings | — |
| 2021-02-17 | 249-518 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Lakefield | — |
| 2021-02-17 | 249-536 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Chelmsford | — |
| 2020-05-19 | 249-897 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Chapleau | — |
| 2020-05-19 | 249-898 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Spanish | — |
| 2020-04-16 | 249-895 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Wasaga Beach | — |
| 2019-12-10 | 249-887 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Collingwood | — |
| 2019-12-10 | 249-890 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Alliston | — |
| 2019-12-10 | 249-891 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Orillia | — |
| 2019-12-10 | 249-892 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Stayner | — |
| 2019-12-10 | 249-893 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Midland | — |
| 2019-09-23 | 249-479 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Sault Ste. Marie | — |
| 2019-09-20 | 249-478 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Huntsville | — |
| 2019-09-04 | 249-477 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Lindsay | — |
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.