NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
BANDWIDTH.COM CLEC, LLC - OR 251
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2026-07-09 541-375-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ROSEBURG OR
2025-11-12 541-628-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F JOHN DAY OR
2025-07-09 541-458-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F WOLF CREEK OR
2023-08-18 541-309-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F LAKEVIEW OR
2023-03-30 541-825-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F DAYS CREEK OR
2022-10-05 541-876-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F LAPINE OR
2022-06-09 541-641-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F YONCALLA OR
2022-06-09 541-696-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CAMAS VLY OR
2021-12-13 541-717-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BAKER OR
2021-10-28 541-625-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ASHLAND OR
2021-10-28 541-708-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ASHLAND OR
2021-07-23 541-524-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BAKER OR
2020-03-10 541-748-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PAULINA OR
2020-03-10 541-931-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F GILCHRIST OR
2019-04-29 541-293-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NYSSA OR
2018-10-17 541-832-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F GLENDALE OR
2018-10-11 541-262-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F OREGONSLOP OR
2017-10-11 541-287-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CAVE JCT OR
2017-07-05 541-406-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BAKER OR
2017-01-31 541-800-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F STANFIELD OR
2016-09-30 541-638-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BLACKBUTTE OR
2016-09-30 541-903-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PRINEVILLE OR
2016-09-30 541-904-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SISTERS OR
2016-08-17 541-901-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F FLORENCE OR
2016-07-19 541-527-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F REDMOND OR
2016-06-24 541-209-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F JEFFERSON OR
2016-06-24 541-919-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ATHENA OR
2016-06-23 541-666-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ALBANY OR
2016-06-23 541-666-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ALBANY OR
2016-06-17 541-527-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F REDMOND OR
2016-04-13 541-249-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BAKER OR
2015-07-27 541-900-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ROSEBURG OR
2015-07-27 541-900-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ROSEBURG OR
2015-06-01 541-371-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F HERMISTON OR
2015-06-01 541-819-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NEWPORT OR
2015-05-27 541-209-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F JEFFERSON OR
2015-05-07 541-709-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ONTARIO OR
2015-05-06 541-583-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F HARRISBURG OR
2015-05-05 541-625-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ASHLAND OR
2015-05-04 541-581-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F LOWELL OR
2015-04-29 541-204-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F LEABURG OR
2015-04-29 541-249-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BAKER OR
2015-04-29 541-321-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F JUNCTIONCY OR
2015-04-29 541-630-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CENTRAL PT OR
2015-04-28 541-313-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F OAKRIDGE OR
2015-04-28 541-699-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F REDMOND OR
2015-04-28 541-903-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PRINEVILLE OR
2015-04-28 541-904-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F SISTERS OR
2015-04-24 541-799-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F EUGENE OR
2015-04-23 541-238-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F KLAMATHFLS 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.