NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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, last 30 days — NPA 541
ONVOY, LLC - OR 2
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
2021-11-19 541-960-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ELGIN OR
2021-11-19 541-970-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PENDLETON OR
2021-11-19 541-985-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H TYGHVALLEY OR
2021-11-17 541-392-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E CASCADELKS OR
2021-11-17 541-397-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 THE DALLES OR
2021-11-17 541-397-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 THE DALLES OR
2021-11-17 541-767-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 COTTAGEGRV OR
2021-11-12 541-397-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H THE DALLES OR
2021-11-12 541-397-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H THE DALLES OR
2021-11-12 541-578-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E MOSIER OR
2021-11-08 541-675-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MADRAS OR
2021-11-08 541-936-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALBANY OR
2021-11-04 541-897-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PHOENIX OR
2021-10-28 541-299-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ROGUERIVER 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
2021-10-28 541-795-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H HEPPNER OR
2021-10-28 541-920-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H VALE OR
2021-10-28 541-920-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H VALE OR
2021-10-22 541-286-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CORVALLIS OR
2021-10-22 541-887-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 KLAMATHFLS OR
2021-10-18 541-351-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E NEWPORT OR
2021-10-18 541-887-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E KLAMATHFLS OR
2021-10-18 541-991-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E FLORENCE OR
2021-10-12 541-978-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 THE DALLES OR
2021-10-08 541-624-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LA GRANDE OR
2021-10-08 541-656-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HERMISTON OR
2021-10-04 541-392-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E CASCADELKS OR
2021-09-28 541-781-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E NO HARNEY OR
2021-09-28 541-886-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WALLOWA OR
2021-09-17 541-300-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 THE DALLES OR
2021-09-07 541-209-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H JEFFERSON OR
2021-09-07 541-219-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H LAKEVIEW OR
2021-09-07 541-373-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GOLD BEACH OR
2021-09-07 541-397-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H THE DALLES OR
2021-09-07 541-436-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H HOOD RIVER OR
2021-09-07 541-796-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H HUNTINGTON OR
2021-09-01 541-310-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OR 6349 PENDLETON OR
2021-09-01 541-524-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BAKER OR
2021-08-31 541-392-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E CASCADELKS OR
2021-08-27 541-669-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E LINCOLN CY OR
2021-08-27 541-669-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E LINCOLN CY OR
2021-08-27 541-920-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H VALE OR
2021-08-19 541-310-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PENDLETON OR
2021-07-23 541-524-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BAKER OR
2021-07-16 541-560-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E PROSPECT OR
2021-07-16 541-793-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E DIAMOND LK OR
2021-07-16 541-865-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E BUTTEFALLS OR
2021-07-16 541-949-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E FISH LAKE OR
2021-07-07 541-933-6XXX 6000–6999Assigned TELNYX LLC 073H MARCOLA 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.