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
2007-07-17 513-693-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-07-17 513-693-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-07-17 513-693-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-07-17 513-693-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-07-05 513-889-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2007-07-03 513-716-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2007-07-03 513-716-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2007-06-26 513-766-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-06-26 513-766-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-06-26 513-766-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-06-22 513-445-0XXX 0000–0999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B MASON OH
2007-06-21 513-204-7XXX 7000–7999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B MASON OH
2007-06-21 513-204-8XXX 8000–8999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B MASON OH
2007-06-07 513-550-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-06-07 513-550-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-06-07 513-550-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-06-07 513-550-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-06-07 513-550-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-06-07 513-550-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-06-05 513-766-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2007-05-23 513-578-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-05-23 513-578-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-05-23 513-578-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-05-23 513-578-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-05-23 513-578-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2007-05-16 513-393-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MIDDLETOWN OH
2007-05-14 513-833-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2007-05-14 513-889-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2007-05-11 513-273-9XXX 9000–9999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B OXFORD OH
2007-05-10 513-795-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HAMILTON OH
2007-05-04 513-693-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J CINCINNATI OH
2007-04-25 513-360-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C MONROE OH
2007-04-25 513-392-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C MIDDLETOWN OH
2007-03-29 513-428-0XXX 0000–0999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B TRENTON OH
2007-03-28 513-693-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-28 513-693-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-28 513-693-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-28 513-693-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-23 513-877-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K BUTLERVL OH
2007-03-21 513-204-5XXX 5000–5999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B MASON OH
2007-03-21 513-349-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-21 513-418-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-21 513-418-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-21 513-418-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-21 513-485-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-21 513-485-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-21 513-485-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-21 513-485-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI OH
2007-03-09 513-875-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K FAYETTEVL OH
2007-03-05 513-593-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OXFORD 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.