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
2011-05-24 330-552-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F KENT OH
2011-05-17 330-531-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J YOUNGSTOWN OH
2011-05-12 330-241-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MEDINA OH
2011-05-05 330-642-2XXX 2000–2999Assigned SUPER-NET, INC. - OH 155F ORRVILLE OH
2011-04-20 330-203-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F AKRON OH
2011-04-08 330-439-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WOOSTER OH
2011-04-08 330-498-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J NO CANTON OH
2011-04-08 330-988-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WOOSTER OH
2011-04-07 330-440-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K NEWPHLDLPH OH
2011-03-30 330-203-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-03-30 330-932-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELIVERPOOL OH
2011-03-30 330-953-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-03-22 330-400-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2011-03-17 330-400-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-03-16 330-594-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 MOGADORE OH
2011-03-10 330-400-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2011-03-10 330-953-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-03-08 330-267-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HARTVILLE OH
2011-03-08 330-968-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 KENT OH
2011-03-04 330-333-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2011-03-04 330-597-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ATWATER OH
2011-03-04 330-822-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ROGERS OH
2011-03-04 330-941-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 YOUNGSTOWN OH
2011-03-03 330-522-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 MINERVA OH
2011-02-24 330-439-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WOOSTER OH
2011-02-24 330-818-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NO CANTON OH
2011-02-24 330-968-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 KENT OH
2011-02-23 330-795-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWPHLDLPH OH
2011-02-22 330-299-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F NILES OH
2011-02-22 330-581-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALLIANCE OH
2011-02-22 330-932-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELIVERPOOL OH
2011-02-22 330-953-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-02-10 330-529-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MANCHESTR OH
2011-01-19 330-707-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-01-19 330-707-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2011-01-11 330-600-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MILLERSBG OH
2011-01-07 330-601-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WOOSTER OH
2011-01-07 330-840-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TWINSBURG OH
2011-01-06 330-275-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MILLERSBG OH
2011-01-06 330-400-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 AKRON OH
2011-01-06 330-556-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWPHLDLPH OH
2010-12-28 330-359-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 WILMOT OH
2010-12-16 330-787-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2010-12-10 330-451-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F CANTON OH
2010-12-09 330-299-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F NILES OH
2010-12-09 330-822-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F ROGERS OH
2010-12-06 330-599-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 YOUNGSTOWN OH
2010-12-06 330-776-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GREENSBURG OH
2010-12-06 330-776-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GREENSBURG OH
2010-12-06 330-776-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 GREENSBURG 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.