NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 937
PEERLESS NETWORK OF OHIO, LLC - OH 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
TELNYX LLC 1
AHOI LLC 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
2014-04-25 937-551-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F PHILLIPSBG OH
2014-04-25 937-553-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MARYSVILLE OH
2014-04-25 937-553-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MARYSVILLE OH
2014-04-25 937-601-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F WMANSFIELD OH
2014-04-25 937-612-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F NO LEWISBG OH
2014-04-25 937-715-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F TROTWOOD OH
2014-04-23 937-226-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2014-04-23 937-368-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FLTCHELENA OH
2014-04-23 937-403-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HILLSBORO OH
2014-04-23 937-476-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2014-04-23 937-540-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ENGLEWOOD OH
2014-04-23 937-557-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FRANKLIN OH
2014-04-23 937-589-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HUNTSVILLE OH
2014-04-23 937-634-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F GRATIS OH
2014-04-23 937-754-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FAIRBORN OH
2014-04-23 937-802-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2014-04-23 937-815-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2014-04-23 937-815-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2014-04-23 937-889-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F LIBERTY OH
2014-04-16 937-374-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2014-04-16 937-630-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2014-04-16 937-813-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2014-04-16 937-896-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 URBANA OH
2014-04-15 937-556-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WILMINGTON OH
2014-04-15 937-618-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GEORGETOWN OH
2014-04-15 937-640-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DAYTON OH
2014-04-09 937-670-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GREENVILLE OH
2014-03-28 937-856-0XXX 0000–0999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B DAYTON OH
2014-03-27 937-505-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K SPRINGFLD OH
2014-03-27 937-683-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 EATON OH
2014-03-26 937-813-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2014-03-26 937-813-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2014-03-21 937-816-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-21 937-816-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-21 937-816-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-21 937-816-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-21 937-816-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-21 937-816-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-21 937-816-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-21 937-816-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-21 937-816-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-21 937-816-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 FAIRBORN OH
2014-03-07 937-756-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SOUTHSOLON OH
2014-03-07 937-839-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F WALEXNDRIA OH
2014-03-05 937-410-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VANDALIA OH
2014-03-05 937-410-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VANDALIA OH
2014-03-05 937-410-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VANDALIA OH
2014-03-05 937-410-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VANDALIA OH
2014-03-05 937-410-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VANDALIA OH
2014-03-04 937-815-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DAYTON 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.