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
2016-02-24 513-847-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C BETHANY OH
2016-02-23 513-449-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C CLERMONT OH
2016-02-23 513-883-3XXX 3000–3999Assigned METROPCS, INC. 5562 HAMILTON OH
2016-02-23 513-952-0XXX 0000–0999Assigned METROPCS, INC. 5562 CINCINNATI OH
2016-02-23 513-952-1XXX 1000–1999Assigned METROPCS, INC. 5562 CINCINNATI OH
2016-02-23 513-970-5XXX 5000–5999Assigned METROPCS, INC. 5562 LEBANON OH
2016-02-23 513-986-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C CLERMONT OH
2016-02-22 513-449-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C CLERMONT OH
2016-02-12 513-975-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 CINCINNATI OH
2016-02-12 513-975-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 CINCINNATI OH
2016-02-12 513-975-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 CINCINNATI OH
2016-02-02 513-883-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMILTON OH
2016-01-19 513-952-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2016-01-19 513-952-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2016-01-12 513-952-2XXX 2000–2999Assigned METROPCS, INC. 5562 CINCINNATI OH
2016-01-12 513-952-3XXX 3000–3999Assigned METROPCS, INC. 5562 CINCINNATI OH
2016-01-12 513-973-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2016-01-12 513-973-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2016-01-11 513-940-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWTONSVL OH
2016-01-11 513-973-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2015-12-21 513-780-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-12-17 513-982-1XXX 1000–1999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F SEVEN MILE OH
2015-12-15 513-457-7XXX 7000–7999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F BETHEL OH
2015-12-14 513-644-3XXX 3000–3999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F BETHANY OH
2015-12-14 513-832-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2015-12-14 513-954-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2015-12-14 513-987-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C LTL MIAMI OH
2015-12-11 513-449-9XXX 9000–9999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F CLERMONT OH
2015-12-11 513-480-8XXX 8000–8999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F SO LEBANON OH
2015-12-11 513-757-9XXX 9000–9999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F REILY OH
2015-12-11 513-845-8XXX 8000–8999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F HARRISON OH
2015-12-11 513-901-0XXX 0000–0999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F WILLIAMSBG OH
2015-12-11 513-916-9XXX 9000–9999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F OXFORD OH
2015-12-11 513-940-7XXX 7000–7999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F NEWTONSVL OH
2015-12-11 513-970-7XXX 7000–7999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F LEBANON OH
2015-12-11 513-987-3XXX 3000–3999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F LTL MIAMI OH
2015-12-01 513-940-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWTONSVL OH
2015-11-23 513-854-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-23 513-854-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-23 513-854-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-23 513-854-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-23 513-854-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-23 513-854-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-23 513-854-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-23 513-854-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-23 513-854-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-23 513-854-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2015-11-16 513-952-4XXX 4000–4999Assigned CINCINNATI BELL 9348 CINCINNATI OH
2015-11-16 513-952-5XXX 5000–5999Assigned CINCINNATI BELL 9348 CINCINNATI OH
2015-11-16 513-952-6XXX 6000–6999Assigned CINCINNATI BELL 9348 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.