NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 740-660

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026

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

The ten 1,000-number thousand-blocks inside prefix 740-660 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 740 blocks

Most active assignees, all time — NPA 740
ONVOY, LLC - OH 4
PEERLESS NETWORK OF OHIO, LLC - OH 2
2
LEVEL 3 COMMUNICATIONS, 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2013-04-03 740-660-0XXX 0000–0999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F ARABIA OH
2013-04-03 740-660-1XXX 1000–1999Assigned PEERLESS NETWORK OF OHIO, LLC - OH 284F ARABIA OH
2016-03-09 740-660-2XXX 2000–2999Assigned ONVOY, LLC - OH 464C ARABIA OH
2016-03-09 740-660-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C ARABIA OH
2005-03-14 740-660-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ARABIA OH
— 740-660-5XXX 5000–5999Available ARABIA OH
2019-01-29 740-660-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C ARABIA OH
2008-06-06 740-660-7XXX 7000–7999Assigned CITYNET OHIO, LLC - OH 036B ARABIA OH
2019-01-29 740-660-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C ARABIA OH
— 740-660-9XXX 9000–9999Available ARABIA OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.