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
2008-12-04 513-593-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F OXFORD OH
2008-12-04 513-696-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LEBANON OH
2008-12-04 513-876-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FELICITY OH
2008-12-04 513-899-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MORROW OH
2008-11-14 513-341-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2008-11-14 513-341-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2008-11-12 513-444-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2008-11-12 513-444-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2008-11-12 513-453-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 LTL MIAMI OH
2008-11-11 513-239-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K LTL MIAMI OH
2008-11-06 513-549-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2008-11-06 513-549-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2008-11-06 513-549-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2008-11-06 513-549-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2008-11-06 513-549-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2008-11-06 513-549-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2008-11-06 513-549-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2008-10-27 513-834-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2008-10-21 513-805-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2008-09-29 513-693-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2008-09-17 513-668-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMILTON OH
2008-09-15 513-442-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-09-15 513-442-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-09-15 513-444-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2008-09-15 513-824-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-09-15 513-824-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-09-12 513-834-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2008-09-12 513-834-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2008-09-12 513-834-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2008-09-12 513-834-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2008-09-12 513-834-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2008-09-09 513-805-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2008-08-28 513-372-7XXX 7000–7999Assigned CITYNET OHIO, LLC - OH 036B CINCINNATI OH
2008-08-18 513-429-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2008-08-18 513-628-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2008-08-18 513-748-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-748-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-748-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-748-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-846-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-846-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-846-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-846-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-846-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-846-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-846-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-18 513-846-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2008-08-14 513-201-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CLERMONT OH
2008-07-28 513-342-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BETHANY OH
2008-07-24 513-445-7XXX 7000–7999Assigned CITYNET OHIO, LLC - OH 036B MASON 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.