NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 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
2014-12-15 513-832-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2014-12-15 513-832-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2014-12-15 513-893-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K HAMILTON OH
2014-12-04 513-486-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K MASON OH
2014-12-04 513-781-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K LTL MIAMI OH
2014-11-25 513-717-1XXX 1000–1999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F SHANDON OH
2014-11-12 513-913-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-11-12 513-913-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-11-12 513-913-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-11-12 513-913-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-11-12 513-913-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-11-12 513-913-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-11-12 513-913-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-11-12 513-913-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-11-12 513-913-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-11-06 513-491-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWTONSVL OH
2014-11-06 513-491-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWTONSVL OH
2014-11-04 513-847-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K BETHANY OH
2014-11-03 513-816-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K HAMILTON OH
2014-10-23 513-816-5XXX 5000–5999Assigned METROPCS, INC. 5562 HAMILTON OH
2014-10-23 513-816-6XXX 6000–6999Assigned METROPCS, INC. 5562 HAMILTON OH
2014-10-22 513-781-0XXX 0000–0999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F LTL MIAMI OH
2014-10-22 513-781-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K LTL MIAMI OH
2014-10-21 513-915-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K MIDDLETOWN OH
2014-10-17 513-978-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2014-10-17 513-978-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2014-10-17 513-978-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2014-10-07 513-433-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MIDDLETOWN OH
2014-10-07 513-433-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MIDDLETOWN OH
2014-10-07 513-908-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-10-07 513-908-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-10-07 513-908-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-10-07 513-908-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-10-07 513-978-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2014-10-06 513-468-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C TRENTON OH
2014-10-06 513-468-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C TRENTON OH
2014-10-02 513-908-0XXX 0000–0999Assigned METROPCS, INC. 5562 CINCINNATI OH
2014-10-01 513-718-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLERMONT OH
2014-10-01 513-904-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2014-10-01 513-904-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2014-10-01 513-904-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2014-09-24 513-904-0XXX 0000–0999Assigned METROPCS, INC. 5562 CINCINNATI OH
2014-09-24 513-904-1XXX 1000–1999Assigned METROPCS, INC. 5562 CINCINNATI OH
2014-09-24 513-904-2XXX 2000–2999Assigned METROPCS, INC. 5562 CINCINNATI OH
2014-09-24 513-904-3XXX 3000–3999Assigned METROPCS, INC. 5562 CINCINNATI OH
2014-09-17 513-904-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2014-09-04 513-438-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C MONROE OH
2014-09-04 513-438-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C MONROE OH
2014-09-04 513-804-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C MIDDLETOWN OH
2014-09-04 513-804-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C MIDDLETOWN OH

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.