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
2016-02-23 937-963-4XXX 4000–4999Assigned METROPCS, INC. 5562 DAYTON OH
2016-02-23 937-963-8XXX 8000–8999Assigned METROPCS, INC. 5562 DAYTON OH
2016-02-19 937-717-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SPRINGFLD OH
2016-02-19 937-963-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2016-02-12 937-615-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF OHIO, LLC - OH 7460 PIQUA OH
2016-01-29 937-956-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVERCREK OH
2016-01-29 937-956-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVERCREK OH
2016-01-21 937-960-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K TROTWOOD OH
2016-01-21 937-980-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K TROY OH
2016-01-15 937-556-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7836 WILMINGTON OH
2016-01-11 937-556-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILMINGTON OH
2016-01-08 937-467-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GREENVILLE OH
2016-01-08 937-980-1XXX 1000–1999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F TROY OH
2016-01-07 937-591-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2016-01-07 937-591-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2015-12-31 937-998-1XXX 1000–1999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F ENGLEWOOD OH
2015-12-08 937-993-3XXX 3000–3999Assigned METROPCS, INC. 5562 DAYTON OH
2015-12-03 937-571-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILMINGTON OH
2015-12-02 937-993-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2015-11-24 937-707-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K MARYSVILLE OH
2015-11-24 937-993-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2015-11-20 937-530-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K MSBGWCRLTN OH
2015-11-20 937-806-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K FRANKLIN OH
2015-11-20 937-810-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 RUSSELLSPT OH
2015-11-17 937-870-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 NEWLEBANON OH
2015-11-16 937-952-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 DAYTON OH
2015-11-11 937-727-2XXX 2000–2999Assigned METROPCS, INC. 5562 SPRINGFLD OH
2015-11-10 937-704-8XXX 8000–8999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F FRANKLIN OH
2015-10-26 937-907-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K CENTERVLLE OH
2015-10-26 937-993-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2015-10-26 937-993-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2015-10-26 937-993-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2015-10-26 937-993-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2015-10-22 937-450-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD OH
2015-10-21 937-419-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 SIDNEY OH
2015-10-21 937-419-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 SIDNEY OH
2015-10-21 937-951-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DAYTON OH
2015-10-13 937-249-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ABERDEEN OH
2015-10-13 937-956-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVERCREK OH
2015-10-13 937-956-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVERCREK OH
2015-10-13 937-956-7XXX 7000–7999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F BEAVERCREK OH
2015-10-07 937-571-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WILMINGTON OH
2015-10-07 937-888-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SO VIENNA OH
2015-10-07 937-951-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2015-10-07 937-951-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2015-09-24 937-951-1XXX 1000–1999Assigned METROPCS, INC. 5562 DAYTON OH
2015-09-22 937-505-8XXX 8000–8999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F SPRINGFLD OH
2015-09-22 937-576-9XXX 9000–9999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F VANDALIA OH
2015-09-22 937-717-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SPRINGFLD OH
2015-09-22 937-916-1XXX 1000–1999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F PIQUA 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.