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
2012-09-07 541-240-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E PENDLETON OR
2012-09-07 541-275-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E UMATILLA OR
2012-09-07 541-303-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E HERMISTON OR
2012-09-07 541-320-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E SUMPTER OR
2012-09-07 541-362-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E PRINEVILLE OR
2012-09-07 541-449-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E STANFIELD OR
2012-09-07 541-588-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E SISTERS OR
2012-09-07 541-604-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E REDMOND OR
2012-09-07 541-615-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E MADRAS OR
2012-09-07 541-638-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E BLACKBUTTE OR
2012-09-07 541-803-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E CULVER OR
2012-09-07 541-876-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E LAPINE OR
2012-09-06 541-570-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 LEBANON OR
2012-09-04 541-500-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MEDFORD OR
2012-08-31 541-887-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KLAMATHFLS OR
2012-08-27 541-249-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BAKER OR
2012-08-24 541-200-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2012-08-24 541-295-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 GRANTSPASS OR
2012-08-24 541-414-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2012-08-24 541-670-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ROSEBURG OR
2012-08-24 541-808-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 COOS BAY OR
2012-08-23 541-561-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 HERMISTON OR
2012-08-22 541-897-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PHOENIX OR
2012-08-14 541-200-1XXX 1000–1999Assigned CAL-ORE COMMUNICATIONS, INC. - OR 348D MEDFORD OR
2012-08-14 541-244-7XXX 7000–7999Assigned CAL-ORE COMMUNICATIONS, INC. - OR 348D GRANTSPASS OR
2012-08-14 541-708-8XXX 8000–8999Assigned CAL-ORE COMMUNICATIONS, INC. - OR 348D ASHLAND OR
2012-08-10 541-362-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PRINEVILLE OR
2012-08-07 541-214-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2012-08-07 541-214-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2012-08-07 541-214-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2012-08-07 541-214-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2012-08-02 541-507-2XXX 2000–2999Assigned QWEST CORPORATION 9638 GRANTSPASS OR
2012-08-02 541-507-3XXX 3000–3999Assigned QWEST CORPORATION 9638 GRANTSPASS OR
2012-08-01 541-303-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 HERMISTON OR
2012-07-31 541-249-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BAKER OR
2012-07-31 541-708-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 ASHLAND OR
2012-07-27 541-200-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F MEDFORD OR
2012-07-25 541-403-3XXX 3000–3999Assigned UNITED STATES CELLULAR - OR 6349 BAKER OR
2012-07-23 541-200-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E MEDFORD OR
2012-07-23 541-200-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E MEDFORD OR
2012-07-18 541-538-1XXX 1000–1999Assigned METROPCS, INC. 5562 WHITE CITY OR
2012-07-17 541-833-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VENETA OR
2012-07-10 541-321-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 JUNCTIONCY OR
2012-07-09 541-362-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PRINEVILLE OR
2012-07-02 541-622-4XXX 4000–4999Assigned METROPCS, INC. 5562 MEDFORD OR
2012-06-20 541-319-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 REEDSPORT OR
2012-06-20 541-671-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ROSEBURG OR
2012-06-20 541-861-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 MILTONFWTR OR
2012-06-20 541-879-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WHITE CITY OR
2012-06-19 541-216-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO 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.