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
2023-01-12 513-650-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C MIDDLETOWN OH
2023-01-11 513-637-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C MASON OH
2023-01-11 513-637-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C MASON OH
2023-01-11 513-637-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C MASON OH
2023-01-11 513-650-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MIDDLETOWN OH
2023-01-11 513-650-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MIDDLETOWN OH
2023-01-04 513-963-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MIDDLETOWN OH
2022-12-08 513-610-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 513-610-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 513-610-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 513-610-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 513-610-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2022-12-08 513-859-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2022-12-08 513-859-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2022-12-08 513-859-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2022-12-08 513-859-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2022-12-08 513-859-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2022-12-08 513-859-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2022-12-08 513-930-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2022-12-08 513-930-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2022-12-08 513-930-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2022-12-08 513-930-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2022-12-08 513-930-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2022-12-08 513-930-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2022-12-08 513-930-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2022-12-08 513-937-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-08 513-937-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-08 513-937-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-08 513-937-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-08 513-937-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-08 513-937-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-08 513-937-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-08 513-937-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-08 513-937-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-08 513-937-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2022-12-05 513-663-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2022-12-05 513-740-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2022-12-05 513-740-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2022-12-05 513-740-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2022-12-05 513-740-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2022-12-01 513-637-0XXX 0000–0999Assigned TELNYX LLC 073H MASON OH
2022-11-23 513-798-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C MORNINGSUN OH
2022-11-21 513-268-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C SO LEBANON OH
2022-11-21 513-756-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C REILY OH
2022-11-18 513-877-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C BUTLERVL OH
2022-11-16 513-928-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2022-11-15 513-902-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C CLERMONT OH
2022-11-15 513-935-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C BETHANY OH
2022-11-08 513-637-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C MASON OH
2022-11-08 513-637-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C MASON 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.