NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 330
ONVOY, LLC - OH 2
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
2010-12-06 330-776-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GREENSBURG OH
2010-12-06 330-899-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GREENSBURG OH
2010-12-03 330-731-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MANCHESTR OH
2010-12-03 330-731-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MANCHESTR OH
2010-12-03 330-731-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MANCHESTR OH
2010-12-03 330-736-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-03 330-736-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-03 330-736-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-03 330-917-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-03 330-917-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-03 330-917-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-03 330-917-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-03 330-917-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-03 330-917-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-03 330-935-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MARLBORO OH
2010-12-02 330-888-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TWINSBURG OH
2010-11-30 330-828-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C DALTON OH
2010-11-15 330-282-3XXX 3000–3999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - OH 024E CORTLAND OH
2010-11-15 330-772-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - OH 024E HARTFORD OH
2010-11-15 330-924-6XXX 6000–6999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - OH 024E JOHNSTON OH
2010-11-04 330-617-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CANTON OH
2010-11-03 330-609-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WARREN OH
2010-11-02 330-787-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2010-11-01 330-572-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2010-11-01 330-645-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2010-11-01 330-861-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2010-10-26 330-367-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WARREN OH
2010-10-21 330-275-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MILLERSBG OH
2010-10-20 330-305-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F NO CANTON OH
2010-10-20 330-541-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F KENT OH
2010-10-19 330-333-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F YOUNGSTOWN OH
2010-10-18 330-526-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NO CANTON OH
2010-10-18 330-526-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NO CANTON OH
2010-10-18 330-818-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NO CANTON OH
2010-10-15 330-249-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ATWATER OH
2010-10-15 330-267-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C HARTVILLE OH
2010-10-15 330-577-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C RAVENNA OH
2010-10-15 330-578-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C ROOTSTOWN OH
2010-10-15 330-595-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C UNIONTOWN OH
2010-10-15 330-790-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C MOGADORE OH
2010-10-15 330-871-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C LOUISVILLE OH
2010-10-15 330-917-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C MARLBORO OH
2010-10-15 330-970-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C CANALFULTN OH
2010-10-08 330-515-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2010-10-08 330-906-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2010-10-08 330-906-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2010-10-08 330-999-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2010-10-08 330-999-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2010-10-08 330-999-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2010-10-08 330-999-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON 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.