NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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 513
BANDWIDTH.COM CLEC, LLC - OH 1
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
2023-06-02 513-776-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2023-06-02 513-776-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2023-06-02 513-776-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2023-06-02 513-812-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C LEBANON OH
2023-06-02 513-994-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C MASON OH
2023-06-02 513-994-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C MASON OH
2023-06-02 513-994-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C MASON OH
2023-05-31 513-656-0XXX 0000–0999Assigned TELNYX LLC 073H CINCINNATI OH
2023-05-31 513-776-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2023-05-24 513-656-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2023-05-24 513-656-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2023-05-24 513-656-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2023-05-24 513-798-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J MORNINGSUN OH
2023-05-23 513-220-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2023-05-23 513-220-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2023-05-22 513-812-4XXX 4000–4999Assigned NUSO, LLC 732J LEBANON OH
2023-05-15 513-747-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2023-05-15 513-747-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2023-05-15 513-747-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2023-05-15 513-775-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C BETHANY OH
2023-05-15 513-775-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C BETHANY OH
2023-05-15 513-775-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C BETHANY OH
2023-05-15 513-776-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2023-05-15 513-776-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2023-05-15 513-776-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2023-05-15 513-776-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2023-05-15 513-992-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C LTL MIAMI OH
2023-05-15 513-992-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C LTL MIAMI OH
2023-05-15 513-992-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C LTL MIAMI OH
2023-05-09 513-747-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 HAMILTON OH
2023-05-09 513-949-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WAYNESVL OH
2023-05-03 513-990-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HAMILTON OH
2023-05-03 513-990-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H HAMILTON OH
2023-04-24 513-980-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C OXFORD OH
2023-04-21 513-812-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C LEBANON OH
2023-04-21 513-949-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C WAYNESVL OH
2023-04-17 513-380-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C FELICITY OH
2023-04-11 513-380-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H FELICITY OH
2023-04-08 513-650-4XXX 4000–4999Assigned METROPCS, INC. 5562 MIDDLETOWN OH
2023-04-08 513-650-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J MIDDLETOWN OH
2023-04-03 513-360-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J MONROE OH
2023-03-29 513-220-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2023-03-29 513-220-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2023-03-29 513-220-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2023-03-29 513-220-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2023-03-29 513-220-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2023-03-29 513-656-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CINCINNATI OH
2023-03-24 513-436-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C WILLIAMSBG OH
2023-03-24 513-962-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C NEWTONSVL OH
2023-03-23 513-220-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH

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.