NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 458
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-02-15 | 458-318-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | HERMISTON | OR |
| 2024-02-15 | 458-318-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | HERMISTON | OR |
| 2022-10-24 | 458-999-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | UMATILLA | OR |
| 2022-06-29 | 458-276-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | ONTARIO | OR |
| 2022-06-28 | 458-254-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | KLAMATHFLS | OR |
| 2022-06-28 | 458-257-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | GRANTSPASS | OR |
| 2022-06-28 | 458-271-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | ROSEBURG | OR |
| 2022-06-28 | 458-278-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | ALBANY | OR |
| 2022-06-28 | 458-763-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | ASHLAND | OR |
| 2022-02-11 | 458-226-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | MEDFORD | OR |
| 2022-02-11 | 458-230-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | COOS BAY | OR |
| 2022-02-11 | 458-279-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | FLORENCE | OR |
| 2022-02-11 | 458-280-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | OAKLAND | OR |
| 2022-02-11 | 458-282-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | COTTAGEGRV | OR |
| 2021-11-19 | 458-867-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | EUGENE | OR |
| 2021-10-21 | 458-255-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | HERMISTON | OR |
| 2021-10-21 | 458-255-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | HERMISTON | OR |
| 2021-09-15 | 458-836-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | BEND | OR |
| 2021-09-15 | 458-836-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | BEND | OR |
| 2021-09-15 | 458-836-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | BEND | OR |
| 2021-09-15 | 458-836-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | BEND | OR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.