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
2014-03-17 541-313-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OAKRIDGE OR
2014-03-17 541-439-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POWERS OR
2014-03-17 541-644-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HARRISBURG OR
2014-03-17 541-692-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MALIN OR
2014-03-17 541-707-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REEDSPORT OR
2014-03-17 541-802-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OAKLAND OR
2014-03-17 541-818-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SWEET HOME OR
2014-03-17 541-843-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JACKSONVL OR
2014-03-17 541-845-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MERRILL OR
2014-03-17 541-860-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MYRTLE CRK OR
2014-03-17 541-906-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PAISLEY OR
2014-03-17 541-909-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NO UMPQUA OR
2014-03-17 541-952-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JUNCTIONCY OR
2014-03-14 541-253-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PORTORFORD OR
2014-03-14 541-417-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKEVIEW OR
2014-03-14 541-425-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GOLD BEACH OR
2014-03-14 541-502-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GOLD HILL OR
2014-03-14 541-551-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BANDON OR
2014-03-14 541-559-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MYRTLE PT OR
2014-03-14 541-658-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CRESWELL OR
2014-03-14 541-759-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 LAKESIDE OR
2014-03-14 541-804-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DRAIN OR
2014-03-14 541-813-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BROOKINGS OR
2014-03-14 541-824-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COQUILLE OR
2014-03-14 541-827-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHILOQUIN OR
2014-03-14 541-872-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GLIDE OR
2014-03-13 541-299-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROGUERIVER OR
2014-03-13 541-415-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CAVE JCT OR
2014-03-13 541-630-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CENTRAL PT OR
2014-03-13 541-631-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ASHLAND OR
2014-03-13 541-641-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YONCALLA OR
2014-03-13 541-652-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLY OR
2014-03-13 541-694-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHEMULT OR
2014-03-13 541-712-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BONANZA OR
2014-03-13 541-839-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 CANYONVL OR
2014-03-13 541-854-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLUE RIVER OR
2014-03-13 541-874-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 RIDDLE OR
2014-03-10 541-604-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F REDMOND OR
2014-03-10 541-854-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BLUE RIVER OR
2014-03-04 541-808-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COOS BAY OR
2014-03-04 541-972-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E EUGENE OR
2014-03-04 541-972-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E EUGENE OR
2014-03-03 541-415-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CAVE JCT OR
2014-02-26 541-203-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K STATELINE OR
2014-02-12 541-303-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OR 6349 HERMISTON OR
2014-02-12 541-802-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F OAKLAND OR
2014-02-07 541-992-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LINCOLN CY OR
2014-02-03 541-631-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ASHLAND OR
2014-02-03 541-699-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 REDMOND OR
2014-01-29 541-919-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ATHENA 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.