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
2004-09-27 330-791-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NAVARRE OH
2004-09-27 330-899-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GREENSBURG OH
2004-09-23 330-341-9XXX 9000–9999Assigned METROPCS, INC. 5562 HANOVERTON OH
2004-09-23 330-883-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WARREN OH
2004-09-20 330-271-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LISBON OH
2004-09-20 330-435-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CRESTON OH
2004-09-20 330-527-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 GARRETTSVL OH
2004-09-20 330-549-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 NORTH LIMA OH
2004-09-20 330-680-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 ALLIANCE OH
2004-09-20 330-947-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 ATWATER OH
2004-09-17 330-769-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 SEVILLE OH
2004-09-16 330-752-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2004-09-14 330-931-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 KENT OH
2004-09-14 330-931-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 KENT OH
2004-09-10 330-302-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 LODI OH
2004-09-10 330-331-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 WADSWORTH OH
2004-09-03 330-222-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 WINONA OH
2004-09-03 330-235-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 RAVENNA OH
2004-09-03 330-517-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 GREENSBURG OH
2004-09-03 330-529-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 MANCHESTR OH
2004-09-03 330-551-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HARTVILLE OH
2004-09-03 330-576-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 MONTROSE OH
2004-09-03 330-595-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 UNIONTOWN OH
2004-09-03 330-622-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2004-09-03 330-693-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 LOUISVILLE OH
2004-09-03 330-694-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 MAGNOLWSBG OH
2004-09-03 330-790-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 MOGADORE OH
2004-09-03 330-850-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 ROOTSTOWN OH
2004-09-03 330-863-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 MALVERN OH
2004-08-31 330-281-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 RAVENNA OH
2004-08-25 330-261-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2004-08-24 330-269-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 HUBBARD OH
2004-08-24 330-271-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 LISBON OH
2004-08-24 330-277-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 SALEM OH
2004-08-18 330-754-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CANTON OH
2004-08-18 330-860-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AKRON OH
2004-08-17 330-259-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2004-08-03 330-409-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CANTON OH
2004-07-30 330-767-6XXX 6000–6999Assigned SUPER-NET, INC. - OH 155F BREWSTER OH
2004-07-28 330-408-7XXX 7000–7999Assigned SUPER-NET, INC. - OH 155F CANALFULTN OH
2004-07-28 330-791-7XXX 7000–7999Assigned SUPER-NET, INC. - OH 155F NAVARRE OH
2004-07-28 330-828-5XXX 5000–5999Assigned SUPER-NET, INC. - OH 155F DALTON OH
2004-07-26 330-880-4XXX 4000–4999Assigned SUPER-NET, INC. - OH 155F MASSILLON OH
2004-07-23 330-241-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 MEDINA OH
2004-07-23 330-286-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CANFIELD OH
2004-07-23 330-288-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 GIRARD OH
2004-07-23 330-299-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 NILES OH
2004-07-23 330-483-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 VALLEYCITY OH
2004-07-23 330-516-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 DALTON OH
2004-07-16 330-752-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 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.