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
2007-03-22 937-580-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2007-03-22 937-580-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2007-03-22 937-969-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K TREMONT CY OH
2007-03-20 937-317-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K SPRING VLY OH
2007-03-20 937-466-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K MARSHALL OH
2007-03-20 937-696-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K FARMERSVL OH
2007-03-20 937-947-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K LAURA OH
2007-03-19 937-755-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NEWMADISON OH
2007-03-19 937-757-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K WMANCHESTR OH
2007-03-19 937-826-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K WOODSTOCK OH
2007-03-19 937-828-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K CATAWBA OH
2007-03-19 937-857-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K CHRISTISBG OH
2007-03-16 937-421-2XXX 2000–2999Assigned GOLDSTAR COMMUNICATIONS, LLC - OH 9133 JACKSONCTR OH
2007-03-15 937-610-9XXX 9000–9999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B DAYTON OH
2007-03-13 937-838-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-03-13 937-838-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2007-03-08 937-561-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2007-03-07 937-499-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-03-07 937-510-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-03-07 937-510-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-03-07 937-510-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-03-05 937-618-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GEORGETOWN OH
2007-03-05 937-622-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SIDNEY OH
2007-03-02 937-521-3XXX 3000–3999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B SPRINGFLD OH
2007-02-28 937-444-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K MOUNT ORAB OH
2007-02-28 937-448-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K BRADFORD OH
2007-02-28 937-551-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K PHILLIPSBG OH
2007-02-28 937-695-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K WINCHESTER OH
2007-02-28 937-697-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K CEDARVILLE OH
2007-02-28 937-987-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NEW VIENNA OH
2007-02-19 937-453-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BOWERSVLLE OH
2007-02-13 937-309-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2007-02-09 937-532-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 XENIA OH
2007-02-08 937-401-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DAYTON OH
2007-02-08 937-401-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DAYTON OH
2007-02-08 937-401-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 DAYTON OH
2007-02-07 937-310-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BELLBROOK OH
2007-02-07 937-340-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ENON OH
2007-02-07 937-634-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GRATIS OH
2007-02-07 937-697-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CEDARVILLE OH
2007-02-07 937-719-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WESTMILTON OH
2007-02-06 937-499-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-02-06 937-499-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2007-02-06 937-527-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WILMINGTON OH
2007-01-26 937-346-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2007-01-19 937-245-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2007-01-19 937-245-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2007-01-19 937-245-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2007-01-19 937-245-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2007-01-16 937-550-0XXX 0000–0999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B FRANKLIN 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.