NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 660-492

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 660-492 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 660 blocks

Most active assignees, all time — NPA 660
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 7
NEW CINGULAR WIRELESS PCS, LLC - IL 1
CENTURYLINK COMMUNICATIONS, LLC 1
AERIAL COMMUNICATIONS, INC. 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
— 660-492-0XXX 0000–0999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 CLINTON MO
2013-11-05 660-492-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLINTON MO
— 660-492-2XXX 2000–2999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 CLINTON MO
— 660-492-3XXX 3000–3999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 CLINTON MO
2012-02-28 660-492-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 CLINTON MO
2008-04-25 660-492-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 CLINTON MO
2014-10-29 660-492-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLINTON MO
— 660-492-7XXX 7000–7999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 CLINTON MO
2021-08-30 660-492-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 CLINTON MO
— 660-492-9XXX 9000–9999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 CLINTON MO

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.