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
2011-08-09 541-654-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2011-08-09 541-965-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 THE DALLES OR
2011-08-04 541-217-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COOS BAY OR
2011-08-04 541-238-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 KLAMATHFLS OR
2011-08-04 541-701-6XXX 6000–6999Assigned METROPCS, INC. 5562 HERMISTON OR
2011-08-04 541-829-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CORVALLIS OR
2011-08-03 541-777-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MADRAS OR
2011-07-29 541-615-0XXX 0000–0999Assigned WARM SPRINGS TELECOMMUNICATIONS COMPANY - OR 094G MADRAS OR
2011-07-27 541-283-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NEWPORT OR
2011-07-27 541-291-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 GRANTSPASS OR
2011-07-27 541-408-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BEND OR
2011-07-19 541-234-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F JUNCTIONCY OR
2011-07-14 541-418-3XXX 3000–3999Assigned METROPCS, INC. 5562 LINCOLN CY OR
2011-07-07 541-880-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 KLAMATHFLS OR
2011-07-06 541-414-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2011-07-06 541-636-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2011-07-05 541-241-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEND OR
2011-07-05 541-241-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEND OR
2011-06-28 541-909-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E NO UMPQUA OR
2011-06-24 541-293-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 NYSSA OR
2011-06-24 541-576-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E SILVERLAKE OR
2011-06-24 541-695-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E WAMIC OR
2011-06-24 541-722-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E SO HARNEY OR
2011-06-24 541-748-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PAULINA OR
2011-06-24 541-834-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PINE GROVE OR
2011-06-24 541-859-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E ROCKYPOINT OR
2011-06-24 541-871-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E SPRAGUERIV OR
2011-06-24 541-873-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E SENECA OR
2011-06-24 541-985-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E TYGHVALLEY OR
2011-06-21 541-216-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 ONTARIO OR
2011-06-20 541-622-9XXX 9000–9999Assigned METROPCS, INC. 5562 MEDFORD OR
2011-06-15 541-636-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E EUGENE OR
2011-06-14 541-327-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J JEFFERSON OR
2011-06-09 541-275-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F UMATILLA OR
2011-06-08 541-223-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ALBANY OR
2011-06-08 541-236-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ROSEBURG OR
2011-06-08 541-237-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F GRANTSPASS OR
2011-06-08 541-283-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F NEWPORT OR
2011-06-08 541-376-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ECHO OR
2011-06-08 541-470-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E DURKEE OR
2011-06-08 541-590-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F FLORENCE OR
2011-06-08 541-627-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E MITCHELL OR
2011-06-08 541-692-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E MALIN OR
2011-06-08 541-694-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E CHEMULT OR
2011-06-08 541-721-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E MONUMENT OR
2011-06-08 541-781-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E NO HARNEY OR
2011-06-08 541-827-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E CHILOQUIN OR
2011-06-08 541-845-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E MERRILL OR
2011-06-08 541-906-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PAISLEY OR
2011-06-08 541-939-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E LONG CREEK 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.