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 |
|---|---|---|---|---|---|---|
| 2023-04-20 | 807-240 | not yet reported which blocks → | TBayTel | 988H | Sioux Lookout | — |
| 2022-06-16 | 807-820 | not yet reported which blocks → | TBayTel | 988H | Terrace Bay | — |
| 2021-08-24 | 807-232 | not yet reported which blocks → | TBayTel | 988H | Marathon | — |
| 2020-03-16 | 807-546 | not yet reported which blocks → | TBayTel | 988H | Keewatin | — |
| 2019-12-20 | 807-549 | not yet reported which blocks → | TBayTel | 988H | Jaffray-Melick | — |
| 2019-02-15 | 807-470 | not yet reported which blocks → | TBayTel | 988H | Kenora | — |
| 2018-04-18 | 807-215 | not yet reported which blocks → | TBayTel | 988H | Dryden | — |
| 2017-01-19 | 807-277 | not yet reported which blocks → | TBayTel | 988H | Fort Frances | — |
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.