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
2011-11-14 513-212-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-11-14 513-212-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-11-14 513-212-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-11-14 513-212-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-28 513-668-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMILTON OH
2011-10-28 513-716-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2011-10-28 513-796-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MORNINGSUN OH
2011-10-12 513-302-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-12 513-302-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-12 513-302-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-12 513-302-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-12 513-501-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-12 513-501-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-12 513-501-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-12 513-501-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-12 513-501-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-10-06 513-212-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2011-10-06 513-212-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2011-10-06 513-212-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2011-10-06 513-882-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-10-06 513-882-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-09-21 513-302-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-302-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-302-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-302-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-302-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-302-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-501-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-501-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-501-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-501-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-20 513-501-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2011-09-19 513-399-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2011-09-15 513-399-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2011-09-15 513-399-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2011-09-14 513-882-1XXX 1000–1999Assigned CITYNET OHIO, LLC - OH 036B CINCINNATI OH
2011-09-08 513-441-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-09-08 513-441-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-09-08 513-441-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-09-08 513-441-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-09-08 513-441-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-09-08 513-441-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-09-08 513-441-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-09-08 513-441-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2011-08-25 513-399-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2011-08-23 513-399-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2011-08-19 513-394-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2011-08-19 513-394-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2011-08-17 513-402-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MONROE OH
2011-08-12 513-415-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI 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.