NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 513-330

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 513-330 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 513 blocks

Most active assignees, all time — NPA 513
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 5
TWC IP ENABLED SERVICES, LLC 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
ONVOY, LLC - OH 1
CITYNET OHIO, LLC - OH 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
— 513-330-0XXX 0000–0999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
— 513-330-1XXX 1000–1999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
— 513-330-2XXX 2000–2999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
— 513-330-3XXX 3000–3999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
— 513-330-4XXX 4000–4999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HAMILTON OH
2008-05-22 513-330-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K HAMILTON OH
2009-03-11 513-330-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K HAMILTON OH
2003-07-24 513-330-7XXX 7000–7999Assigned CITYNET OHIO, LLC - OH 036B HAMILTON OH
2009-11-05 513-330-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C HAMILTON OH
2026-06-17 513-330-9XXX 9000–9999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HAMILTON 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.