NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2012-08-02 | 541-507-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9638 | GRANTSPASS | OR |
| 2012-08-02 | 541-507-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9638 | GRANTSPASS | OR |
| 2009-02-12 | 541-460-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9638 | MADRAS | OR |
| 2008-12-08 | 541-790-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2008-12-08 | 541-790-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2008-12-08 | 541-790-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2008-12-08 | 541-790-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2008-12-08 | 541-790-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2008-12-08 | 541-790-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2008-10-09 | 541-450-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9638 | GRANTSPASS | OR |
| 2008-06-18 | 541-375-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2008-06-18 | 541-375-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2008-06-18 | 541-375-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2008-06-18 | 541-375-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2008-06-18 | 541-375-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2008-06-18 | 541-375-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2008-02-08 | 541-706-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2008-02-08 | 541-706-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2008-02-08 | 541-706-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2008-02-08 | 541-706-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2008-02-08 | 541-706-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2008-02-08 | 541-706-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2008-01-22 | 541-706-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2007-12-20 | 541-222-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2007-12-20 | 541-222-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2007-12-20 | 541-222-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2007-11-05 | 541-222-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2007-11-05 | 541-222-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2007-11-05 | 541-222-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2007-11-05 | 541-222-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2007-11-05 | 541-222-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9638 | EUGENE | OR |
| 2007-10-30 | 541-429-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9638 | PENDLETON | OR |
| 2007-06-19 | 541-274-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9638 | KLAMATHFLS | OR |
| 2007-02-22 | 541-516-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9638 | REDMOND | OR |
| 2007-02-01 | 541-902-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9638 | FLORENCE | OR |
| 2006-12-07 | 541-274-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9638 | KLAMATHFLS | OR |
| 2006-12-07 | 541-274-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9638 | KLAMATHFLS | OR |
| 2006-12-07 | 541-274-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9638 | KLAMATHFLS | OR |
| 2006-12-07 | 541-274-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9638 | KLAMATHFLS | OR |
| 2006-12-07 | 541-274-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9638 | KLAMATHFLS | OR |
| 2006-12-07 | 541-274-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9638 | KLAMATHFLS | OR |
| 2006-08-28 | 541-637-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2006-08-28 | 541-637-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2006-08-28 | 541-637-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2006-08-28 | 541-637-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9638 | ROSEBURG | OR |
| 2006-02-07 | 541-633-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2006-02-07 | 541-633-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2005-10-20 | 541-201-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9638 | ASHLAND | OR |
| 2005-10-13 | 541-550-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
| 2004-12-29 | 541-598-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9638 | BEND | OR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.