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
2014-09-03 513-491-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWTONSVL OH
2014-09-03 513-491-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWTONSVL OH
2014-09-03 513-816-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMILTON OH
2014-09-03 513-816-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMILTON OH
2014-09-02 513-818-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2014-09-02 513-818-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2014-09-02 513-818-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2014-08-26 513-970-8XXX 8000–8999Assigned METROPCS, INC. 5562 LEBANON OH
2014-08-20 513-781-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2014-08-20 513-816-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2014-08-20 513-816-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2014-08-20 513-818-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2014-08-20 513-818-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2014-08-20 513-818-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2014-08-20 513-818-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2014-08-20 513-818-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2014-08-20 513-970-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LEBANON OH
2014-08-20 513-970-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LEBANON OH
2014-08-15 513-570-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2014-08-15 513-570-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2014-08-15 513-642-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2014-08-15 513-839-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F OXFORD OH
2014-08-15 513-839-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F OXFORD OH
2014-08-15 513-843-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CLERMONT OH
2014-08-15 513-843-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CLERMONT OH
2014-08-15 513-915-1XXX 1000–1999Assigned METROPCS, INC. 5562 MIDDLETOWN OH
2014-08-15 513-915-2XXX 2000–2999Assigned METROPCS, INC. 5562 MIDDLETOWN OH
2014-08-15 513-915-3XXX 3000–3999Assigned METROPCS, INC. 5562 MIDDLETOWN OH
2014-08-15 513-915-4XXX 4000–4999Assigned METROPCS, INC. 5562 MIDDLETOWN OH
2014-08-14 513-427-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHEL OH
2014-08-14 513-427-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHEL OH
2014-08-14 513-570-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2014-08-11 513-570-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-08-11 513-570-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-08-11 513-570-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-08-11 513-570-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2014-08-07 513-814-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2014-08-07 513-815-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CINCINNATI OH
2014-08-07 513-815-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2014-08-07 513-815-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2014-08-07 513-817-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2014-08-07 513-836-9XXX 9000–9999Assigned METROPCS, INC. 5562 LEBANON OH
2014-08-07 513-893-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2014-07-31 513-486-8XXX 8000–8999Assigned METROPCS, INC. 5562 MASON OH
2014-07-31 513-492-1XXX 1000–1999Assigned METROPCS, INC. 5562 MASON OH
2014-07-31 513-773-9XXX 9000–9999Assigned METROPCS, INC. 5562 HAMILTON OH
2014-07-31 513-869-3XXX 3000–3999Assigned METROPCS, INC. 5562 HAMILTON OH
2014-07-31 513-869-6XXX 6000–6999Assigned METROPCS, INC. 5562 HAMILTON OH
2014-07-31 513-972-1XXX 1000–1999Assigned METROPCS, INC. 5562 MASON OH
2014-07-25 513-814-0XXX 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.