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
2010-05-19 937-668-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2010-05-19 937-798-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 PEEBLES OH
2010-05-19 937-912-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BEAVERCREK OH
2010-05-04 937-392-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 RIPLEY OH
2010-05-04 937-618-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 GEORGETOWN OH
2010-05-04 937-868-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 GREENFIELD OH
2010-04-30 937-405-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWCARLISL OH
2010-04-30 937-723-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-04-20 937-502-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 XENIA OH
2010-04-08 937-668-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-04-08 937-668-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-04-08 937-668-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-04-08 937-668-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-04-08 937-668-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-04-08 937-668-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DAYTON OH
2010-04-05 937-467-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GREENVILLE OH
2010-04-05 937-481-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WILMINGTON OH
2010-04-05 937-892-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEST UNION OH
2010-04-02 937-543-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWCARLISL OH
2010-04-02 937-710-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SIDNEY OH
2010-03-26 937-716-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C DAYTON OH
2010-03-23 937-540-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K ENGLEWOOD OH
2010-03-19 937-733-4XXX 4000–4999Assigned METROPCS, INC. 5562 EATON OH
2010-03-12 937-490-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J BEAVERCREK OH
2010-03-11 937-303-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MARYSVILLE OH
2010-03-08 937-366-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WILMINGTON OH
2010-03-05 937-944-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILMINGTON OH
2010-03-04 937-476-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F DAYTON OH
2010-03-03 937-471-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SPRINGFLD OH
2010-02-24 937-709-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 BELLBROOK OH
2010-02-19 937-314-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 DONNELSVL OH
2010-02-19 937-584-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 SABINA OH
2010-02-03 937-404-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 BELLEFNTAN OH
2010-01-29 937-210-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BELLEFNTAN OH
2010-01-29 937-528-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2010-01-29 937-710-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SIDNEY OH
2010-01-29 937-926-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2010-01-25 937-927-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K SUGRTRERDG OH
2010-01-21 937-343-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FAIRBORN OH
2010-01-21 937-387-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F VANDALIA OH
2010-01-21 937-530-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MSBGWCRLTN OH
2010-01-21 937-552-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F TROY OH
2010-01-21 937-619-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CENTERVLLE OH
2010-01-21 937-848-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BELLBROOK OH
2010-01-20 937-527-5XXX 5000–5999Assigned METROPCS, INC. 5562 WILMINGTON OH
2010-01-11 937-318-3XXX 3000–3999Assigned CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 309B FAIRBORN OH
2010-01-06 937-331-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C DAYTON OH
2009-12-31 937-303-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARYSVILLE OH
2009-12-30 937-798-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 PEEBLES OH
2009-12-23 937-699-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEFNTAN 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.