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
2020-08-20 937-917-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2020-08-20 937-917-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2020-08-20 937-917-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 SPRINGFLD OH
2020-08-12 937-600-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 XENIA OH
2020-08-12 937-918-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F VANDALIA OH
2020-08-08 937-965-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2020-08-08 937-965-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2020-08-08 937-965-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAYTON OH
2020-08-06 937-518-8XXX 8000–8999Assigned HD CARRIER LLC 321J DAYTON OH
2020-08-06 937-518-9XXX 9000–9999Assigned HD CARRIER LLC 321J DAYTON OH
2020-08-05 937-741-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DAYTON OH
2020-07-30 937-868-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GREENFIELD OH
2020-07-23 937-722-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BELLEFNTAN OH
2020-07-23 937-900-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BEAVERCREK OH
2020-07-23 937-926-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 SPRINGFLD OH
2020-07-15 937-706-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F SOCHARLETN OH
2020-07-15 937-790-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F FRANKLIN OH
2020-07-14 937-519-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C DAYTON OH
2020-07-14 937-519-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C DAYTON OH
2020-07-14 937-722-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BELLEFNTAN OH
2020-06-25 937-930-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H DAYTON OH
2020-06-25 937-930-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H DAYTON OH
2020-06-25 937-930-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H DAYTON OH
2020-06-25 937-930-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H DAYTON OH
2020-06-19 937-373-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C DECATUR OH
2020-06-19 937-375-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C HIGGINSPT OH
2020-06-19 937-377-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C RUSSELLVL OH
2020-06-19 937-379-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C HAMERSVL OH
2020-06-19 937-442-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C MOWRYSTOWN OH
2020-06-19 937-446-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C SARDINIA OH
2020-06-19 937-588-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C SINKINGSPG OH
2020-06-19 937-712-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C MOUNT ORAB OH
2020-06-19 937-731-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C GEORGETOWN OH
2020-06-19 937-752-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C SEAMAN OH
2020-06-19 937-892-4XXX 4000–4999Assigned ONVOY, LLC - OH 464C WEST UNION OH
2020-06-18 937-749-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C PIQUA OH
2020-06-18 937-749-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C PIQUA OH
2020-06-15 937-957-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 RIPLEY OH
2020-06-12 937-801-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 GEORGETOWN OH
2020-06-04 937-377-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 RUSSELLVL OH
2020-06-01 937-688-9XXX 9000–9999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F SPRINGFLD OH
2020-05-29 937-932-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C HUNTSVILLE OH
2020-05-29 937-932-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C HUNTSVILLE OH
2020-05-29 937-984-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C MILFORDCTR OH
2020-05-29 937-984-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C MILFORDCTR OH
2020-05-29 937-989-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C YORKCENTER OH
2020-05-29 937-989-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C YORKCENTER OH
2020-05-26 937-400-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C JACKSONCTR OH
2020-05-26 937-400-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C JACKSONCTR OH
2020-05-26 937-563-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C PITCHIN 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.