NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2020-10-14 513-778-1XXX 1000–1999Assigned NUSO, LLC 478J CINCINNATI OH
2020-10-08 513-991-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2020-10-01 513-750-1XXX 1000–1999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F CLERMONT OH
2020-10-01 513-845-7XXX 7000–7999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F HARRISON OH
2020-09-28 513-743-1XXX 1000–1999Assigned IP HORIZON LLC 515J CINCINNATI OH
2020-09-16 513-991-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2020-09-05 513-694-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-09-05 513-694-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-09-05 513-694-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-09-05 513-694-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-09-05 513-694-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-09-05 513-694-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-08-31 513-995-3XXX 3000–3999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F BETHEL OH
2020-08-20 513-663-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMILTON OH
2020-08-20 513-663-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMILTON OH
2020-08-17 513-750-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CLERMONT OH
2020-08-12 513-597-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F NEWTONSVL OH
2020-08-12 513-991-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2020-08-12 513-991-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2020-08-12 513-991-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CINCINNATI OH
2020-08-10 513-694-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J CINCINNATI OH
2020-07-23 513-993-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2020-07-20 513-690-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2020-07-20 513-690-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2020-07-20 513-690-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2020-07-20 513-991-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-07-20 513-991-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2020-07-15 513-726-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2020-07-13 513-689-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 LEBANON OH
2020-07-09 513-540-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MIDDLETOWN OH
2020-07-06 513-676-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHANY OH
2020-06-26 513-712-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHANY OH
2020-06-26 513-995-0XXX 0000–0999Assigned TELNYX LLC 073H BETHEL OH
2020-06-25 513-669-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LTL MIAMI OH
2020-06-25 513-810-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2020-06-25 513-810-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2020-06-25 513-810-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2020-06-25 513-866-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2020-06-22 513-640-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LTL MIAMI OH
2020-06-22 513-640-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LTL MIAMI OH
2020-06-22 513-640-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LTL MIAMI OH
2020-06-22 513-640-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LTL MIAMI OH
2020-06-19 513-270-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C FELICITY OH
2020-06-03 513-643-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C WILLIAMSBG OH
2020-06-03 513-643-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C WILLIAMSBG OH
2020-06-03 513-647-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C MIDDLETOWN OH
2020-06-03 513-647-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C MIDDLETOWN OH
2020-06-03 513-647-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C MIDDLETOWN OH
2020-06-01 513-640-9XXX 9000–9999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F LTL MIAMI OH
2020-06-01 513-866-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CINCINNATI OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.