NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 989-403

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 989-403 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 989 blocks

Most active assignees, all time — NPA 989
ONVOY, LLCV - MI 3
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2
WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 1
TELEPORT COMMUNICATIONS AMERICA, LLC - MI 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 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
2015-12-07 989-403-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C ST JOHNS MI
2015-12-07 989-403-1XXX 1000–1999Assigned ONVOY, LLCV - MI 543C ST JOHNS MI
2017-08-02 989-403-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ST JOHNS MI
2008-12-11 989-403-3XXX 3000–3999Assigned ACD TELECOM, INC. - MI 3535 ST JOHNS MI
2017-08-02 989-403-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ST JOHNS MI
2018-07-02 989-403-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E ST JOHNS MI
2015-07-21 989-403-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MI 770E ST JOHNS MI
2013-03-26 989-403-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C ST JOHNS MI
2017-04-12 989-403-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ST JOHNS MI
2015-12-14 989-403-9XXX 9000–9999Assigned WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 0127 ST JOHNS MI

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.