NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2013-05-08 541-454-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 ARLINGTON OR
2013-05-06 541-321-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 JUNCTIONCY OR
2013-05-06 541-876-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F LAPINE OR
2013-04-24 541-699-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDMOND OR
2013-04-18 541-507-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 GRANTSPASS OR
2013-04-17 541-879-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 WHITE CITY OR
2013-04-17 541-903-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PRINEVILLE OR
2013-04-15 541-769-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K THE DALLES OR
2013-04-11 541-903-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 PRINEVILLE OR
2013-04-08 541-209-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E JEFFERSON OR
2013-04-08 541-286-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CORVALLIS OR
2013-04-08 541-600-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F EUGENE OR
2013-04-08 541-600-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F EUGENE OR
2013-04-08 541-600-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F EUGENE OR
2013-04-03 541-248-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F ALBANY OR
2013-04-02 541-846-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F PROVOTMPHY OR
2013-04-01 541-403-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E BAKER OR
2013-04-01 541-566-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E ATHENA OR
2013-04-01 541-802-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E OAKLAND OR
2013-03-29 541-248-6XXX 6000–6999Assigned ONVOY, LLC - OR 750E ALBANY OR
2013-03-29 541-631-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E ASHLAND OR
2013-03-21 541-376-4XXX 4000–4999Assigned EASTERN OREGON TELECOM, LLC - OR 3955 ECHO OR
2013-03-21 541-449-4XXX 4000–4999Assigned EASTERN OREGON TELECOM, LLC - OR 3955 STANFIELD OR
2013-03-20 541-731-5XXX 5000–5999Assigned METROPCS, INC. 5562 EUGENE OR
2013-03-14 541-248-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ALBANY OR
2013-03-14 541-631-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ASHLAND OR
2013-03-12 541-213-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 BEND OR
2013-03-12 541-283-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWPORT OR
2013-03-12 541-361-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 REEDSPORT OR
2013-03-12 541-551-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BANDON OR
2013-02-27 541-238-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 KLAMATHFLS OR
2013-02-11 541-671-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ROSEBURG OR
2013-02-08 541-214-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2013-02-08 541-214-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2013-02-08 541-656-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 HERMISTON OR
2013-02-05 541-731-6XXX 6000–6999Assigned METROPCS, INC. 5562 EUGENE OR
2013-01-30 541-620-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 JOHN DAY OR
2013-01-29 541-644-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HARRISBURG OR
2013-01-18 541-530-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ROSEBURG OR
2013-01-17 541-373-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 GOLD BEACH OR
2013-01-17 541-398-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ENTERPRISE OR
2013-01-17 541-507-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 GRANTSPASS OR
2013-01-10 541-630-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CENTRAL PT OR
2012-12-27 541-239-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E BAKER OR
2012-12-27 541-239-9XXX 9000–9999Assigned ONVOY, LLC - OR 750E BAKER OR
2012-12-27 541-275-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E UMATILLA OR
2012-12-27 541-316-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E REDMOND OR
2012-12-27 541-320-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E SUMPTER OR
2012-12-27 541-320-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E SUMPTER OR
2012-12-27 541-427-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E UKIAH OR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.