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
2011-08-08 330-288-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C GIRARD OH
2011-08-08 330-362-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WELLSVILLE OH
2011-08-08 330-366-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NORTH LIMA OH
2011-08-08 330-368-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ELIVERPOOL OH
2011-08-08 330-536-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C LOWELLVL OH
2011-08-08 330-568-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C HUBBARD OH
2011-08-08 330-817-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C LEETONIA OH
2011-08-08 330-846-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C NEWWATERFD OH
2011-08-08 330-886-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C EPALESTINE OH
2011-08-08 330-892-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C COLUMBIANA OH
2011-08-08 330-969-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SHARON OH
2011-08-03 330-271-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LISBON OH
2011-08-03 330-621-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WOOSTER OH
2011-07-26 330-203-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-203-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-400-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-400-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-400-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-400-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-510-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-510-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-510-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-510-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-26 330-913-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALLIANCE OH
2011-07-26 330-913-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALLIANCE OH
2011-07-20 330-888-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TWINSBURG OH
2011-07-12 330-359-9XXX 9000–9999Assigned SUPER-NET, INC. - OH 155F WILMOT OH
2011-07-12 330-400-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K AKRON OH
2011-07-12 330-435-5XXX 5000–5999Assigned SUPER-NET, INC. - OH 155F CRESTON OH
2011-07-12 330-624-2XXX 2000–2999Assigned SUPER-NET, INC. - OH 155F BURBANK OH
2011-07-12 330-951-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-07-12 330-951-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-07-12 330-951-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-07-12 330-951-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-07-11 330-623-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-07-08 330-906-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-08 330-906-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-08 330-999-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-07-07 330-400-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2011-06-17 330-541-9XXX 9000–9999Assigned FIRST COMMUNICATIONS, LLC 460K KENT OH
2011-06-07 330-257-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ALLIANCE OH
2011-06-07 330-269-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HUBBARD OH
2011-06-07 330-274-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MANTUA OH
2011-06-07 330-961-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F UNIONTOWN OH
2011-05-24 330-510-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F AKRON OH
2011-05-24 330-510-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F AKRON OH
2011-05-24 330-510-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F AKRON OH
2011-05-24 330-510-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F AKRON OH
2011-05-24 330-510-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F AKRON OH
2011-05-24 330-552-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F KENT 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.