NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 541
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-08-27 | 541-735-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2012-05-15 | 541-876-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | LAPINE | OR |
| 2012-03-22 | 541-252-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | COOS BAY | OR |
| 2012-03-01 | 541-623-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | COTTAGEGRV | OR |
| 2012-02-07 | 541-246-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2012-01-30 | 541-236-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | ROSEBURG | OR |
| 2011-02-03 | 541-708-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | ASHLAND | OR |
| 2010-08-04 | 541-622-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | MEDFORD | OR |
| 2010-07-30 | 541-295-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | GRANTSPASS | OR |
| 2010-07-07 | 541-452-8XXX | 8000–8999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CORVALLIS | OR |
| 2010-05-25 | 541-516-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | REDMOND | OR |
| 2010-05-21 | 541-497-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | ALBANY | OR |
| 2010-05-12 | 541-423-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CENTRAL PT | OR |
| 2009-12-07 | 541-671-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | ROSEBURG | OR |
| 2009-08-25 | 541-237-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | GRANTSPASS | OR |
| 2009-06-11 | 541-719-2XXX | 2000–2999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | SISTERS | OR |
| 2008-12-12 | 541-646-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | MEDFORD | OR |
| 2008-08-20 | 541-852-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2008-08-18 | 541-690-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | MEDFORD | OR |
| 2008-05-28 | 541-868-9XXX | 9000–9999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2007-12-12 | 541-647-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEND | OR |
| 2007-10-19 | 541-743-8XXX | 8000–8999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2006-12-14 | 541-393-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2006-12-14 | 541-452-9XXX | 9000–9999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CORVALLIS | OR |
| 2006-12-08 | 541-743-9XXX | 9000–9999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2006-02-15 | 541-848-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEND | OR |
| 2005-10-04 | 541-505-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2005-09-23 | 541-550-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | BEND | OR |
| 2004-11-02 | 541-228-3XXX | 3000–3999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2004-06-01 | 541-743-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | EUGENE | OR |
| 2004-01-26 | 541-767-4XXX | 4000–4999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | COTTAGEGRV | OR |
| 2003-07-07 | 541-423-1XXX | 1000–1999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7172 | CENTRAL PT | OR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.