NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 989-439

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 989-439 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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 5
ONVOY, LLCV - MI 2
CLEAR RATE COMMUNICATIONS, LLC 1
CHARTER IP ENABLED SERVICES, LLC 1
BANDWIDTH.COM CLEC, LLC - 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2014-08-20 989-439-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E BAY CITY MI
2012-09-18 989-439-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BAY CITY MI
2013-03-06 989-439-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BAY CITY MI
2013-03-06 989-439-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BAY CITY MI
2013-03-06 989-439-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BAY CITY MI
2013-06-13 989-439-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BAY CITY MI
2013-06-05 989-439-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 BAY CITY MI
2012-05-03 989-439-7XXX 7000–7999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L BAY CITY MI
2015-12-17 989-439-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C BAY CITY MI
2013-02-14 989-439-9XXX 9000–9999Assigned ONVOY, LLCV - MI 543C BAY CITY 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.