NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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, 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
2008-04-08 541-728-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E BEND OR
2008-04-02 541-515-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J EUGENE OR
2008-03-24 541-537-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 ROSEBURG OR
2008-03-07 541-647-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEND OR
2008-03-07 541-701-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 HERMISTON OR
2008-03-06 541-678-9XXX 9000–9999Assigned METROPCS, INC. 5562 BEND OR
2008-02-22 541-274-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 KLAMATHFLS OR
2008-02-22 541-604-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 REDMOND OR
2008-02-20 541-647-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BEND OR
2008-02-20 541-852-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2008-02-19 541-769-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K THE DALLES OR
2008-02-14 541-435-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 COOS BAY OR
2008-02-14 541-614-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LINCOLN CY OR
2008-02-14 541-701-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HERMISTON OR
2008-02-08 541-706-2XXX 2000–2999Assigned QWEST CORPORATION 9638 BEND OR
2008-02-08 541-706-3XXX 3000–3999Assigned QWEST CORPORATION 9638 BEND OR
2008-02-08 541-706-4XXX 4000–4999Assigned QWEST CORPORATION 9638 BEND OR
2008-02-08 541-706-5XXX 5000–5999Assigned QWEST CORPORATION 9638 BEND OR
2008-02-08 541-706-6XXX 6000–6999Assigned QWEST CORPORATION 9638 BEND OR
2008-02-08 541-706-7XXX 7000–7999Assigned QWEST CORPORATION 9638 BEND OR
2008-02-06 541-436-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOOD RIVER OR
2008-02-05 541-210-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 MEDFORD OR
2008-02-01 541-719-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 SISTERS OR
2008-01-31 541-595-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BLACKBUTTE OR
2008-01-31 541-647-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BEND OR
2008-01-31 541-647-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BEND OR
2008-01-31 541-701-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 HERMISTON OR
2008-01-31 541-887-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 KLAMATHFLS OR
2008-01-28 541-591-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 KLAMATHFLS OR
2008-01-22 541-205-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 KLAMATHFLS OR
2008-01-22 541-227-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 MEDFORD OR
2008-01-22 541-292-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 MEDFORD OR
2008-01-22 541-701-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 HERMISTON OR
2008-01-22 541-706-8XXX 8000–8999Assigned QWEST CORPORATION 9638 BEND OR
2008-01-21 541-719-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 SISTERS OR
2008-01-17 541-325-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MADRAS OR
2008-01-16 541-407-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E LAKEVIEW OR
2008-01-16 541-658-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E CRESWELL OR
2008-01-16 541-728-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BEND OR
2008-01-16 541-728-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BEND OR
2008-01-10 541-635-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K TOLEDO OR
2008-01-09 541-206-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2008-01-09 541-222-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2008-01-09 541-222-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2008-01-09 541-227-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2008-01-09 541-514-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2008-01-09 541-514-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2008-01-09 541-531-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2008-01-09 541-727-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CENTRAL PT OR
2008-01-07 541-413-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E BURNS 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.