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
2018-03-26 937-249-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ABERDEEN OH
2018-03-26 937-459-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GREENVILLE OH
2018-03-26 937-467-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GREENVILLE OH
2018-03-26 937-786-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GREENVILLE OH
2018-03-26 937-786-9XXX 9000–9999Assigned METROPCS, INC. 5562 GREENVILLE OH
2018-03-26 937-967-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MT VICTORY OH
2018-03-23 937-900-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVERCREK OH
2018-03-16 937-683-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EATON OH
2018-03-06 937-209-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K MARYSVILLE OH
2018-02-23 937-897-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C SIDNEY OH
2018-02-16 937-560-8XXX 8000–8999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F MSBGWCRLTN OH
2018-02-16 937-860-3XXX 3000–3999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F YLSPGCLFTN OH
2018-02-06 937-907-3XXX 3000–3999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F CENTERVLLE OH
2018-01-17 937-569-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 GREENVILLE OH
2017-11-20 937-717-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K SPRINGFLD OH
2017-11-10 937-722-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BELLEFNTAN OH
2017-11-09 937-900-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVERCREK OH
2017-11-01 937-600-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C XENIA OH
2017-11-01 937-600-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C XENIA OH
2017-11-01 937-900-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C BEAVERCREK OH
2017-11-01 937-900-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C BEAVERCREK OH
2017-10-26 937-500-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C HILLSBORO OH
2017-10-26 937-500-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C HILLSBORO OH
2017-10-17 937-250-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C DAYTON OH
2017-10-16 937-965-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2017-09-27 937-521-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2017-09-26 937-639-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ANNA OH
2017-09-11 937-442-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 MOWRYSTOWN OH
2017-09-06 937-712-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOUNT ORAB OH
2017-08-23 937-965-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K DAYTON OH
2017-08-16 937-616-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2017-08-16 937-616-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2017-08-16 937-616-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2017-08-16 937-616-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2017-08-16 937-616-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2017-08-16 937-616-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2017-08-16 937-616-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2017-08-16 937-616-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2017-08-16 937-616-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 XENIA OH
2017-08-14 937-538-2XXX 2000–2999Assigned METROPCS, INC. 5562 SIDNEY OH
2017-08-14 937-538-5XXX 5000–5999Assigned METROPCS, INC. 5562 SIDNEY OH
2017-08-14 937-541-4XXX 4000–4999Assigned METROPCS, INC. 5562 PIQUA OH
2017-08-14 937-541-7XXX 7000–7999Assigned METROPCS, INC. 5562 PIQUA OH
2017-08-11 937-680-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GREENVILLE OH
2017-08-11 937-731-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GEORGETOWN OH
2017-08-11 937-893-3XXX 3000–3999Assigned METROPCS, INC. 5562 MARYSVILLE OH
2017-08-09 937-992-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WILMINGTON OH
2017-08-09 937-992-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WILMINGTON OH
2017-08-09 937-992-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WILMINGTON OH
2017-07-28 937-500-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 HILLSBORO 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.