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
2021-07-01 513-547-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C TRENTON OH
2021-06-29 513-298-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHANY OH
2021-06-29 513-298-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BETHANY OH
2021-06-28 513-905-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2021-06-27 513-278-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J BETHEL OH
2021-06-25 513-279-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C HARRISON OH
2021-06-25 513-279-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C HARRISON OH
2021-06-25 513-822-7XXX 7000–7999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F MIDDLETOWN OH
2021-06-21 513-299-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C SEVEN MILE OH
2021-06-21 513-299-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C SEVEN MILE OH
2021-06-04 513-838-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2021-06-04 513-838-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2021-06-04 513-838-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2021-06-04 513-838-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2021-06-04 513-838-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C CINCINNATI OH
2021-05-27 513-270-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C FELICITY OH
2021-05-27 513-270-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C FELICITY OH
2021-05-27 513-848-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C MASON OH
2021-05-27 513-848-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C MASON OH
2021-05-27 513-848-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C MASON OH
2021-05-27 513-848-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C MASON OH
2021-05-15 513-690-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2021-05-15 513-690-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2021-05-15 513-690-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SEVEN MILE OH
2021-05-14 513-286-5XXX 5000–5999Assigned COMMIO, LLC 939H CLERMONT OH
2021-05-14 513-286-6XXX 6000–6999Assigned COMMIO, LLC 939H CLERMONT OH
2021-05-14 513-286-9XXX 9000–9999Assigned COMMIO, LLC 939H CLERMONT OH
2021-05-07 513-669-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2021-05-07 513-669-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2021-05-07 513-669-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 LTL MIAMI OH
2021-04-29 513-838-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CINCINNATI OH
2021-04-29 513-848-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C MASON OH
2021-04-29 513-848-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C MASON OH
2021-04-27 513-838-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2021-04-27 513-838-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CINCINNATI OH
2021-04-15 513-809-3XXX 3000–3999Assigned METROPCS, INC. 5562 LEBANON OH
2021-04-15 513-809-4XXX 4000–4999Assigned METROPCS, INC. 5562 LEBANON OH
2021-04-15 513-809-5XXX 5000–5999Assigned METROPCS, INC. 5562 LEBANON OH
2021-04-13 513-764-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2021-04-13 513-764-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2021-04-13 513-837-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2021-04-13 513-837-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2021-04-13 513-837-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2021-04-13 513-838-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2021-04-13 513-838-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CINCINNATI OH
2021-04-12 513-905-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2021-04-12 513-905-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2021-04-12 513-905-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2021-04-12 513-905-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON OH
2021-04-07 513-596-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HAMILTON 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.