NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 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 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
2007-01-12 937-386-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 SEAMAN OH
2007-01-12 937-402-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HILLSBORO OH
2007-01-12 937-421-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 JACKSONCTR OH
2007-01-12 937-663-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ST PARIS OH
2007-01-12 937-753-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 COVINGTON OH
2007-01-12 937-755-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NEWMADISON OH
2006-12-11 937-610-7XXX 7000–7999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B DAYTON OH
2006-12-11 937-912-0XXX 0000–0999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B BEAVERCREK OH
2006-12-08 937-318-1XXX 1000–1999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B FAIRBORN OH
2006-12-08 937-347-1XXX 1000–1999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B XENIA OH
2006-12-06 937-260-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2006-12-06 937-346-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2006-12-06 937-707-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARYSVILLE OH
2006-12-05 937-779-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WEST UNION OH
2006-12-01 937-267-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2006-12-01 937-397-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2006-12-01 937-397-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2006-12-01 937-708-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2006-11-27 937-733-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 EATON OH
2006-11-21 937-217-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEST UNION OH
2006-11-21 937-582-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K DE GRAFF OH
2006-11-21 937-612-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NO LEWISBG OH
2006-11-20 937-379-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K HAMERSVL OH
2006-11-20 937-392-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K RIPLEY OH
2006-11-20 937-690-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K GEORGETOWN OH
2006-11-07 937-514-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 FRANKLIN OH
2006-11-06 937-528-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 DAYTON OH
2006-10-27 937-720-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NEW PARIS OH
2006-10-27 937-798-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K PEEBLES OH
2006-10-26 937-795-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K ABERDEEN OH
2006-10-24 937-396-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DAYTON OH
2006-10-24 937-844-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 BELLEFNTAN OH
2006-10-20 937-625-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K BLANCHESTR OH
2006-10-19 937-247-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K MSBGWCRLTN OH
2006-10-19 937-319-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K YLSPGCLFTN OH
2006-10-19 937-352-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K XENIA OH
2006-10-19 937-366-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K WILMINGTON OH
2006-10-19 937-387-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K VANDALIA OH
2006-10-19 937-462-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K SOCHARLETN OH
2006-10-19 937-506-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K TIPP CITY OH
2006-10-19 937-529-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K TROTWOOD OH
2006-10-19 937-552-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K TROY OH
2006-10-19 937-568-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K SO VIENNA OH
2006-10-19 937-606-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K PIQUA OH
2006-10-19 937-663-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K ST PARIS OH
2006-10-19 937-679-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K NEWCARLISL OH
2006-10-19 937-687-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K NEWLEBANON OH
2006-10-19 937-719-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K WESTMILTON OH
2006-10-19 937-779-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K WEST UNION OH
2006-10-19 937-839-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K WALEXNDRIA 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.