NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 608-432

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 608-432 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 608 blocks

Most active assignees, all time — NPA 608
UNITED STATES CELLULAR - WI 5
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 2
TON80 COMMUNICATIONS, LLC 1
ONVOY SPECTRUM, LLC 1
BANDWIDTH.COM CLEC, LLC - 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
2023-05-02 608-432-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H WISCONDLLS WI
2003-10-01 608-432-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WI 6274 WISCONDLLS WI
2003-10-01 608-432-2XXX 2000–2999Assigned UNITED STATES CELLULAR - WI 6274 WISCONDLLS WI
2003-10-01 608-432-3XXX 3000–3999Assigned UNITED STATES CELLULAR - WI 6274 WISCONDLLS WI
2003-10-01 608-432-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WI 6274 WISCONDLLS WI
2008-10-22 608-432-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WISCONDLLS WI
2014-02-04 608-432-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 WISCONDLLS WI
2021-08-10 608-432-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J WISCONDLLS WI
2010-03-31 608-432-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 WISCONDLLS WI
2010-12-21 608-432-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 WISCONDLLS WI

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.