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
2007-10-18 937-938-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2007-10-18 937-938-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2007-10-18 937-938-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2007-10-18 937-938-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2007-10-18 937-938-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2007-10-17 937-467-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GREENVILLE OH
2007-10-04 937-522-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 DAYTON OH
2007-10-04 937-528-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 DAYTON OH
2007-10-04 937-641-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-10-04 937-751-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-10-04 937-751-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-10-04 937-751-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-10-04 937-751-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-10-04 937-751-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-10-04 937-751-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-10-04 937-751-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-10-04 937-751-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-10-04 937-751-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-09-28 937-460-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2007-09-28 937-460-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2007-09-18 937-708-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2007-09-14 937-528-6XXX 6000–6999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B DAYTON OH
2007-09-14 937-528-7XXX 7000–7999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B DAYTON OH
2007-09-12 937-414-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-09-12 937-660-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2007-09-05 937-401-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2007-08-22 937-552-8XXX 8000–8999Assigned FRONTIER NORTH, INC. - OH 0615 TROY OH
2007-08-22 937-944-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILMINGTON OH
2007-07-31 937-733-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 EATON OH
2007-07-24 937-405-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWCARLISL OH
2007-07-20 937-401-1XXX 1000–1999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B DAYTON OH
2007-07-18 937-423-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENVILLE OH
2007-07-13 937-895-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K GERMANTOWN OH
2007-07-09 937-304-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-07-09 937-304-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-07-09 937-305-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-07-09 937-321-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-07-09 937-723-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-07-09 937-789-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-07-09 937-789-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-07-06 937-789-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-07-06 937-789-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-07-05 937-414-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-07-05 937-414-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-06-29 937-398-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 SPRINGFLD OH
2007-06-29 937-736-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 XENIA OH
2007-06-29 937-912-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BEAVERCREK OH
2007-06-26 937-360-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SPRINGFLD OH
2007-06-07 937-401-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2007-06-06 937-529-6XXX 6000–6999Assigned METROPCS, INC. 5562 TROTWOOD 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.