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
2017-12-08 541-625-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ASHLAND OR
2017-12-08 541-803-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E CULVER OR
2017-11-27 541-538-3XXX 3000–3999Assigned METROPCS, INC. 5562 WHITE CITY OR
2017-11-27 541-538-4XXX 4000–4999Assigned METROPCS, INC. 5562 WHITE CITY OR
2017-11-20 541-671-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ROSEBURG OR
2017-11-16 541-640-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEND OR
2017-11-16 541-668-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEND OR
2017-11-13 541-675-9XXX 9000–9999Assigned METROPCS, INC. 5562 MADRAS OR
2017-11-03 541-945-5XXX 5000–5999Assigned ASTOUND BROADBAND, LLC - OR 936F BOARDMAN OR
2017-10-17 541-838-1XXX 1000–1999Assigned METROPCS, INC. 5562 PROVOTMPHY OR
2017-10-17 541-838-2XXX 2000–2999Assigned METROPCS, INC. 5562 PROVOTMPHY OR
2017-10-11 541-287-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F CAVE JCT OR
2017-10-09 541-319-8XXX 8000–8999Assigned ONVOY, LLC - OR 750E REEDSPORT OR
2017-10-02 541-880-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 KLAMATHFLS OR
2017-09-29 541-360-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CORVALLIS OR
2017-09-21 541-239-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BAKER OR
2017-09-12 541-751-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 COOS BAY OR
2017-08-31 541-630-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CENTRAL PT OR
2017-08-31 541-690-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 MEDFORD OR
2017-08-31 541-810-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 KLAMATHFLS OR
2017-08-21 541-810-6XXX 6000–6999Assigned CAL-ORE COMMUNICATIONS, INC. - OR 348D KLAMATHFLS OR
2017-08-16 541-581-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LOWELL OR
2017-08-15 541-827-5XXX 5000–5999Assigned HUNTER CONSTRUCTION, INC. DBA HUNTER COMMS - OR 660C CHILOQUIN OR
2017-08-14 541-415-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OR 6349 CAVE JCT OR
2017-08-07 541-527-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 REDMOND OR
2017-07-25 541-727-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 CENTRAL PT OR
2017-07-05 541-406-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OR 076F BAKER OR
2017-06-27 541-373-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 GOLD BEACH OR
2017-06-09 541-239-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BAKER OR
2017-06-09 541-403-6XXX 6000–6999Assigned METROPCS, INC. 5562 BAKER OR
2017-06-08 541-666-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ALBANY OR
2017-05-31 541-650-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J EUGENE OR
2017-05-12 541-645-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 HOOD RIVER OR
2017-05-05 541-371-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 HERMISTON OR
2017-05-03 541-825-2XXX 2000–2999Assigned ONVOY, LLC - OR 750E DAYS CREEK OR
2017-05-03 541-837-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E AZALEA OR
2017-05-03 541-866-3XXX 3000–3999Assigned ONVOY, LLC - OR 750E WOLF CREEK OR
2017-05-03 541-874-5XXX 5000–5999Assigned ONVOY, LLC - OR 750E RIDDLE OR
2017-05-01 541-398-7XXX 7000–7999Assigned ONVOY, LLC - OR 750E ENTERPRISE OR
2017-05-01 541-675-1XXX 1000–1999Assigned ONVOY, LLC - OR 750E MADRAS OR
2017-04-20 541-340-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 THE DALLES OR
2017-04-20 541-620-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 JOHN DAY OR
2017-04-12 541-415-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 CAVE JCT OR
2017-03-24 541-630-2XXX 2000–2999Assigned METROPCS, INC. 5562 CENTRAL PT OR
2017-03-23 541-823-7XXX 7000–7999Assigned METROPCS, INC. 5562 ONTARIO OR
2017-03-08 541-650-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2017-02-28 541-219-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LAKEVIEW OR
2017-02-09 541-654-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2017-02-08 541-901-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 FLORENCE OR
2017-02-07 541-640-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEND 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.