NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 740
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 2
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
2015-10-26 740-951-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K PATASKALA OH
2015-10-22 740-245-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RIO GRANDE OH
2015-10-21 740-487-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ZANESVILLE OH
2015-10-20 740-602-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DELAWARE OH
2015-10-20 740-883-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BARTLETT OH
2015-10-13 740-400-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BALTIMORE OH
2015-10-13 740-893-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CROTON OH
2015-10-07 740-855-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 WELLSTON OH
2015-09-30 740-485-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MT VERNON OH
2015-08-31 740-830-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K MT VERNON OH
2015-08-31 740-990-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K DELAWARE OH
2015-08-24 740-307-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IRONTON OH
2015-08-24 740-861-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHESAPEAKE OH
2015-08-21 740-447-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K ATHENS OH
2015-08-21 740-604-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LONDON OH
2015-08-21 740-716-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTSMOUTH OH
2015-08-21 740-716-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTSMOUTH OH
2015-08-18 740-915-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K NEWARK OH
2015-08-11 740-325-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLAIRE OH
2015-08-11 740-571-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CIRCLEVL OH
2015-08-06 740-785-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANCASTER OH
2015-08-05 740-589-8XXX 8000–8999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-608-1XXX 1000–1999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-608-2XXX 2000–2999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-608-3XXX 3000–3999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-608-4XXX 4000–4999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-608-5XXX 5000–5999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-608-6XXX 6000–6999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-608-8XXX 8000–8999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-608-9XXX 9000–9999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-731-0XXX 0000–0999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-731-6XXX 6000–6999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-731-7XXX 7000–7999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-731-8XXX 8000–8999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-08-05 740-731-9XXX 9000–9999Assigned FRONTIER NORTH, INC. - OH 0615 ATHENS OH
2015-07-31 740-489-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OLDWSHNGTN OH
2015-07-30 740-217-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F WALNUT OH
2015-07-30 740-669-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F WILKESVL OH
2015-07-23 740-771-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K CHILLICOTH OH
2015-07-16 740-245-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C RIO GRANDE OH
2015-07-16 740-430-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C BLOOMINGBG OH
2015-07-16 740-462-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MT VERNON OH
2015-07-16 740-488-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C JEFFERSNVL OH
2015-07-16 740-519-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C CLARINGTON OH
2015-07-16 740-619-7XXX 7000–7999Assigned ONVOY, LLC - OH 464C BARNESVL OH
2015-07-16 740-659-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C GLENFORD OH
2015-07-16 740-786-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C SOMERTON OH
2015-07-16 740-923-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C NORWICH OH
2015-07-16 740-948-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C MILLEDGEVL OH
2015-07-16 740-957-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 DELAWARE 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.