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
2016-06-17 541-527-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F REDMOND OR
2016-06-17 541-819-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWPORT OR
2016-06-13 541-650-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EUGENE OR
2016-06-03 541-527-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 REDMOND OR
2016-05-31 541-230-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 CORVALLIS OR
2016-05-27 541-239-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BAKER OR
2016-05-10 541-650-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EUGENE OR
2016-05-06 541-666-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J ALBANY OR
2016-05-06 541-916-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 GRANTSPASS OR
2016-05-04 541-612-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PENDLETON OR
2016-05-03 541-916-4XXX 4000–4999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C GRANTSPASS OR
2016-04-18 541-786-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 LA GRANDE OR
2016-04-15 541-240-5XXX 5000–5999Assigned METROPCS, INC. 5562 PENDLETON OR
2016-04-15 541-300-5XXX 5000–5999Assigned METROPCS, INC. 5562 THE DALLES OR
2016-04-15 541-380-3XXX 3000–3999Assigned METROPCS, INC. 5562 HOOD RIVER OR
2016-04-15 541-418-7XXX 7000–7999Assigned METROPCS, INC. 5562 LINCOLN CY OR
2016-04-15 541-900-2XXX 2000–2999Assigned METROPCS, INC. 5562 ROSEBURG OR
2016-04-15 541-900-3XXX 3000–3999Assigned METROPCS, INC. 5562 ROSEBURG OR
2016-04-15 541-900-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ROSEBURG OR
2016-04-13 541-249-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BAKER OR
2016-04-12 541-435-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 COOS BAY OR
2016-04-05 541-745-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CORVALLIS OR
2016-04-05 541-809-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MILTONFWTR OR
2016-03-31 541-780-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 EUGENE OR
2016-03-24 541-809-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E MILTONFWTR OR
2016-03-24 541-809-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E MILTONFWTR OR
2016-03-23 541-638-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E BLACKBUTTE OR
2016-03-23 541-638-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E BLACKBUTTE OR
2016-03-23 541-904-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E SISTERS OR
2016-03-23 541-904-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E SISTERS OR
2016-03-23 541-907-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E LAPINE OR
2016-03-23 541-907-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E LAPINE OR
2016-03-21 541-527-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E REDMOND OR
2016-03-21 541-527-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E REDMOND OR
2016-03-18 541-819-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E NEWPORT OR
2016-03-18 541-819-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E NEWPORT OR
2016-03-18 541-970-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E PENDLETON OR
2016-03-18 541-970-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PENDLETON OR
2016-03-17 541-403-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E BAKER OR
2016-03-17 541-406-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E BAKER OR
2016-03-17 541-591-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 KLAMATHFLS OR
2016-03-17 541-916-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 GRANTSPASS OR
2016-03-16 541-262-0XXX 0000–0999Assigned ONVOY, LLC - OR 750E OREGONSLOP OR
2016-03-16 541-262-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E OREGONSLOP OR
2016-03-16 541-916-2XXX 2000–2999Assigned UNITED STATES CELLULAR - OR 6349 GRANTSPASS OR
2016-03-15 541-209-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E JEFFERSON OR
2016-03-15 541-209-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E JEFFERSON OR
2016-03-15 541-254-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BROOKINGS OR
2016-03-15 541-418-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LINCOLN CY OR
2016-03-15 541-777-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MADRAS 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.