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
2004-01-07 541-749-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEND OR
2003-12-17 541-282-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2003-12-12 541-360-0XXX 0000–0999Assigned ALYRICA TELEPHONE LLC DBA NEXT GEN PHONE SYS-OR 9882 CORVALLIS OR
2003-12-11 541-206-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2003-12-10 541-390-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BEND OR
2003-12-05 541-905-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ALBANY OR
2003-12-03 541-231-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CORVALLIS OR
2003-12-02 541-973-7XXX 7000–7999Assigned UNITED STATES CELLULAR - OR 6349 MEDFORD OR
2003-12-02 541-973-8XXX 8000–8999Assigned UNITED STATES CELLULAR - OR 6349 MEDFORD OR
2003-12-02 541-973-9XXX 9000–9999Assigned UNITED STATES CELLULAR - OR 6349 MEDFORD OR
2003-11-04 541-526-6XXX 6000–6999Assigned QWEST CORPORATION 9638 REDMOND OR
2003-10-28 541-784-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ROSEBURG OR
2003-10-28 541-817-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ROSEBURG OR
2003-10-28 541-817-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ROSEBURG OR
2003-10-23 541-263-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ENTERPRISE OR
2003-10-23 541-263-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ENTERPRISE OR
2003-10-22 541-851-4XXX 4000–4999Assigned QWEST CORPORATION 9638 KLAMATHFLS OR
2003-10-03 541-261-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2003-10-03 541-282-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2003-10-03 541-868-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2003-10-01 541-510-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2003-10-01 541-510-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2003-09-23 541-231-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CORVALLIS OR
2003-09-09 541-429-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PENDLETON OR
2003-09-05 541-261-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2003-09-05 541-868-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2003-09-05 541-868-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2003-08-25 541-205-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 KLAMATHFLS OR
2003-08-19 541-905-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ALBANY OR
2003-08-06 541-206-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2003-08-06 541-206-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2003-08-06 541-425-0XXX 0000–0999Assigned UNITED STATES CELLULAR - OR 6349 GOLD BEACH OR
2003-08-06 541-425-1XXX 1000–1999Assigned UNITED STATES CELLULAR - OR 6349 GOLD BEACH OR
2003-07-09 541-435-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 COOS BAY OR
2003-07-08 541-261-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2003-07-07 541-423-1XXX 1000–1999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7172 CENTRAL PT OR
2003-06-11 541-999-3XXX 3000–3999Assigned METROPCS, INC. 5562 FLORENCE OR
2003-05-27 541-226-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRANTSPASS OR
2003-05-12 541-784-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ROSEBURG OR
2003-05-12 541-784-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ROSEBURG OR
2003-05-12 541-784-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ROSEBURG OR
2003-04-23 541-364-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LINCOLN CY OR
2003-04-03 541-351-0XXX 0000–0999Assigned METROPCS, INC. 5562 NEWPORT OR
2003-03-31 541-261-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2003-03-20 541-351-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 NEWPORT OR
2003-03-20 541-363-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OR 7531 KLAMATHFLS OR
2003-03-20 541-749-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 BEND OR
2003-03-12 541-366-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 PORTORFORD OR
2003-03-12 541-982-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 COOS BAY OR
2003-01-23 541-612-9XXX 9000–9999Assigned ZIPLY FIBER, LLC 0760 PENDLETON 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.