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
2011-09-09 937-661-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HILLSBORO OH
2011-09-02 937-765-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWCARLISL OH
2011-09-02 937-824-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-09-02 937-825-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-08-17 937-317-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SPRING VLY OH
2011-08-15 937-365-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C RAINSBORO OH
2011-08-15 937-392-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C RIPLEY OH
2011-08-15 937-466-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MARSHALL OH
2011-08-15 937-695-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C WINCHESTER OH
2011-08-15 937-862-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C SPRING VLY OH
2011-08-15 937-882-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C DONNELSVL OH
2011-08-15 937-927-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C SUGRTRERDG OH
2011-08-09 937-702-4XXX 4000–4999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B BEAVERCREK OH
2011-08-08 937-622-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SIDNEY OH
2011-08-03 937-267-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-08-03 937-267-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-08-03 937-312-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-08-03 937-823-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-08-03 937-853-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-08-03 937-853-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-08-02 937-247-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MSBGWCRLTN OH
2011-08-02 937-346-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SPRINGFLD OH
2011-07-26 937-321-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-26 937-432-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-26 937-443-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-26 937-463-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-26 937-469-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-26 937-476-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-26 937-542-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-26 937-542-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-26 937-567-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-26 937-586-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2011-07-13 937-414-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-07-13 937-414-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-07-13 937-422-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-07-13 937-422-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2011-07-12 937-496-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2011-07-12 937-886-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K CENTERVLLE OH
2011-06-30 937-622-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SIDNEY OH
2011-06-09 937-705-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 BEAVERCREK OH
2011-06-08 937-280-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F VANDALIA OH
2011-06-08 937-314-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DONNELSVL OH
2011-06-08 937-343-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FAIRBORN OH
2011-06-08 937-471-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SPRINGFLD OH
2011-06-08 937-471-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SPRINGFLD OH
2011-06-08 937-875-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F TROY OH
2011-06-07 937-347-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2011-06-07 937-469-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2011-06-07 937-705-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BEAVERCREK OH
2011-06-07 937-709-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BELLBROOK 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.