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
2018-12-06 513-966-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2018-11-28 513-966-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2018-11-27 513-654-1XXX 1000–1999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F SO LEBANON OH
2018-11-19 513-599-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2018-11-19 513-599-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2018-11-19 513-599-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2018-11-19 513-599-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2018-11-19 513-599-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2018-11-08 513-202-2XXX 2000–2999Assigned INVOXIO INCORPORATED 158H HARRISON OH
2018-11-08 513-216-6XXX 6000–6999Assigned INVOXIO INCORPORATED 158H BETHEL OH
2018-11-08 513-447-0XXX 0000–0999Assigned INVOXIO INCORPORATED 158H SHANDON OH
2018-11-08 513-499-9XXX 9000–9999Assigned INVOXIO INCORPORATED 158H HAMILTON OH
2018-11-08 513-597-7XXX 7000–7999Assigned INVOXIO INCORPORATED 158H NEWTONSVL OH
2018-11-08 513-757-7XXX 7000–7999Assigned INVOXIO INCORPORATED 158H REILY OH
2018-11-08 513-901-5XXX 5000–5999Assigned INVOXIO INCORPORATED 158H WILLIAMSBG OH
2018-11-08 513-966-6XXX 6000–6999Assigned INVOXIO INCORPORATED 158H LTL MIAMI OH
2018-11-08 513-982-3XXX 3000–3999Assigned INVOXIO INCORPORATED 158H SEVEN MILE OH
2018-11-01 513-447-6XXX 6000–6999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F SHANDON OH
2018-10-24 513-613-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C MORROW OH
2018-10-24 513-654-9XXX 9000–9999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F SO LEBANON OH
2018-10-24 513-953-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2018-10-19 513-434-8XXX 8000–8999Assigned TELNYX LLC 073H REILY OH
2018-10-19 513-447-8XXX 8000–8999Assigned TELNYX LLC 073H SHANDON OH
2018-10-19 513-548-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C MASON OH
2018-10-18 513-997-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MIDDLETOWN OH
2018-10-18 513-997-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MIDDLETOWN OH
2018-10-12 513-599-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-10-09 513-799-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2018-09-24 513-799-9XXX 9000–9999Assigned INVOXIO INCORPORATED 158H CINCINNATI OH
2018-09-11 513-480-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SO LEBANON OH
2018-09-10 513-216-9XXX 9000–9999Assigned TELNYX LLC 073H BETHEL OH
2018-09-10 513-788-8XXX 8000–8999Assigned TELNYX LLC 073H HARRISON OH
2018-09-10 513-901-2XXX 2000–2999Assigned TELNYX LLC 073H WILLIAMSBG OH
2018-09-10 513-982-9XXX 9000–9999Assigned TELNYX LLC 073H SEVEN MILE OH
2018-08-23 513-216-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHEL OH
2018-08-23 513-216-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHEL OH
2018-08-21 513-472-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MORROW OH
2018-08-21 513-525-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2018-08-21 513-855-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F WAYNESVL OH
2018-08-14 513-547-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TRENTON OH
2018-08-13 513-416-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MIDDLETOWN OH
2018-08-13 513-416-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MIDDLETOWN 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.