NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 715-978

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 715-978 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 715 blocks

Most active assignees, all time — NPA 715
8
LEVEL 3 COMMUNICATIONS, LLC - WI 1
CHARTER IP ENABLED SERVICES, LLC 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
2007-01-15 715-978-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CADOTT WI
— 715-978-1XXX 1000–1999Available CADOTT WI
— 715-978-2XXX 2000–2999Available CADOTT WI
— 715-978-3XXX 3000–3999Available CADOTT WI
— 715-978-4XXX 4000–4999Available CADOTT WI
— 715-978-5XXX 5000–5999Available CADOTT WI
— 715-978-6XXX 6000–6999Available CADOTT WI
2014-10-28 715-978-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 CADOTT WI
— 715-978-8XXX 8000–8999Available CADOTT WI
— 715-978-9XXX 9000–9999Available CADOTT WI

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.