NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 715-643

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 715-643 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
4
TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK 3
TERRA NOVA TELECOM INC. 1
ONVOY, LLC - WI 1
24-7 TELCOM, INC. - WI 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
— 715-643-0XXX 0000–0999Available BOYCEVILLE WI
2019-12-13 715-643-1XXX 1000–1999Assigned 24-7 TELCOM, INC. - WI 4855 BOYCEVILLE WI
— 715-643-2XXX 2000–2999Reserved TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK 1155 BOYCEVILLE WI
— 715-643-3XXX 3000–3999Reserved TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK 1155 BOYCEVILLE WI
— 715-643-4XXX 4000–4999Available BOYCEVILLE WI
— 715-643-5XXX 5000–5999Available BOYCEVILLE WI
2025-07-01 715-643-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J BOYCEVILLE WI
— 715-643-7XXX 7000–7999Reserved TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK 1155 BOYCEVILLE WI
2020-05-12 715-643-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C BOYCEVILLE WI
— 715-643-9XXX 9000–9999Assigned (pending) BOYCEVILLE 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.