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
2004-11-16 541-324-5XXX 5000–5999Assigned METROPCS, INC. 5562 MEDFORD OR
2004-11-16 541-693-3XXX 3000–3999Assigned METROPCS, INC. 5562 BEND OR
2004-11-16 541-921-6XXX 6000–6999Assigned METROPCS, INC. 5562 LINCOLN CY OR
2004-11-05 541-556-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2004-11-02 541-228-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7172 EUGENE OR
2004-10-27 541-324-6XXX 6000–6999Assigned METROPCS, INC. 5562 MEDFORD OR
2004-10-26 541-206-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2004-10-26 541-206-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2004-10-26 541-399-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HOOD RIVER OR
2004-10-22 541-325-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MADRAS OR
2004-10-20 541-570-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LEBANON OR
2004-10-20 541-778-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2004-10-15 541-337-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EUGENE OR
2004-10-15 541-887-8XXX 8000–8999Assigned CAL-ORE COMMUNICATIONS, INC. - OR 348D KLAMATHFLS OR
2004-10-14 541-789-0XXX 0000–0999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-14 541-789-1XXX 1000–1999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-14 541-789-2XXX 2000–2999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-14 541-789-3XXX 3000–3999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-14 541-789-4XXX 4000–4999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-14 541-789-5XXX 5000–5999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-14 541-789-6XXX 6000–6999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-14 541-789-7XXX 7000–7999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-14 541-789-8XXX 8000–8999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-14 541-789-9XXX 9000–9999Assigned QWEST CORPORATION 9638 MEDFORD OR
2004-10-12 541-279-0XXX 0000–0999Assigned METROPCS, INC. 5562 MADRAS OR
2004-10-12 541-510-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2004-10-12 541-556-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 EUGENE OR
2004-10-08 541-720-2XXX 2000–2999Assigned METROPCS, INC. 5562 HERMISTON OR
2004-10-07 541-314-5XXX 5000–5999Assigned UNITED STATES CELLULAR - OR 6349 HERMISTON OR
2004-09-30 541-861-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MILTONFWTR OR
2004-09-24 541-324-7XXX 7000–7999Assigned METROPCS, INC. 5562 MEDFORD OR
2004-09-24 541-610-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BEND OR
2004-09-22 541-902-4XXX 4000–4999Assigned ALYRICA TELEPHONE LLC DBA NEXT GEN PHONE SYS-OR 9882 FLORENCE OR
2004-09-16 541-709-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ONTARIO OR
2004-09-16 541-709-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ONTARIO OR
2004-09-13 541-610-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BEND OR
2004-08-26 541-292-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2004-08-25 541-441-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANTSPASS OR
2004-08-18 541-206-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EUGENE OR
2004-08-17 541-324-8XXX 8000–8999Assigned METROPCS, INC. 5562 MEDFORD OR
2004-08-11 541-206-6XXX 6000–6999Assigned ALYRICA TELEPHONE LLC DBA NEXT GEN PHONE SYS-OR 9882 EUGENE OR
2004-08-11 541-220-2XXX 2000–2999Assigned ALYRICA TELEPHONE LLC DBA NEXT GEN PHONE SYS-OR 9882 ALBANY OR
2004-08-11 541-240-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PENDLETON OR
2004-08-05 541-961-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 NEWPORT OR
2004-07-26 541-610-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BEND OR
2004-07-23 541-292-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MEDFORD OR
2004-07-06 541-223-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ALBANY OR
2004-07-06 541-223-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 ALBANY OR
2004-06-23 541-886-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OR 3234 WALLOWA OR
2004-06-07 541-231-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 5820 CORVALLIS 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.