Data as of Nov 10, 2026

166.32.0.0/12

No anonymizer space

Verizon Business

Announcement

this exact prefix

No RPKI

Announced by

AS3371

Type

Internet provider

>99% of it

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.

More specific

Announcements inside

Arrived

Sort

Prefix	Origin	Type	Holder
166.32.0.0/20 since Apr 2011	AS3372	Internet provider	Verizon Business
166.32.16.0/20 since Nov 2016	AS3372	Internet provider	Verizon Business
166.32.48.0/20 since Jun 2010	AS3372	Internet provider	Verizon Business
166.32.56.0/24 since Oct 2010	AS3372	Internet provider	Verizon Business
166.32.128.0/19 since Jun 2010	AS3372	Internet provider	Verizon Business
166.32.160.0/20 since Oct 2010	AS3372	Internet provider	Verizon Business
166.32.240.0/20 since Feb 2011	AS3372	Internet provider	Verizon Business
166.33.0.0/19 since Feb 2011	AS3372	Internet provider	Verizon Business
166.33.11.0/24 since Apr 2011	AS3372	Internet provider	Verizon Business
166.33.32.0/20 since Jun 2010	AS3372	Internet provider	Verizon Business
166.33.48.0/21 since Oct 2013	AS3372	Internet provider	Verizon Business
166.33.52.0/22 since Nov 2019	AS3372	Internet provider	Verizon Business
166.33.56.0/21 since Feb 2011	AS3372	Internet provider	Verizon Business
166.33.64.0/19 since Mar 2011	AS3372	Internet provider	Verizon Business
166.33.96.0/19 since Jun 2010	AS3372	Internet provider	Verizon Business
166.33.160.0/20 since Feb 2011	AS3372	Internet provider	Verizon Business
166.33.176.0/20 since Apr 2011	AS3372	Internet provider	Verizon Business
166.33.192.0/20 since Oct 2010	AS3372	Internet provider	Verizon Business
166.34.64.0/18 since Jun 2011	AS3378	Internet provider	Verizon Business
166.34.128.0/17 since Oct 2010	AS3372	Internet provider	Verizon Business
166.35.128.0/17 since Jun 2010	AS3372	Internet provider	Verizon Business
166.36.0.0/20 since Aug 2013	AS3372	Internet provider	Verizon Business
166.36.16.0/21 since Mar 2011	AS3372	Internet provider	Verizon Business
166.36.24.0/21 since Dec 2016	AS3372	Internet provider	Verizon Business
166.36.80.0/21 since Jun 2010	AS3372	Internet provider	Verizon Business
166.36.88.0/21 since Mar 2011	AS3372	Internet provider	Verizon Business
166.37.0.0/18 since Oct 2010	AS3372	Internet provider	Verizon Business
166.37.96.0/19 since Mar 2011	AS3372	Internet provider	Verizon Business
166.37.194.0/23 since Oct 2011	AS3375	Internet provider	Verizon Business
166.37.200.0/21 since Oct 2011	AS3375	Internet provider	Verizon Business
166.37.208.0/20 since Oct 2011	AS3375	Internet provider	Verizon Business
166.37.218.0/23 since Dec 2024	AS3375	Internet provider	Verizon Business
166.37.232.0/21 since Sep 2011	AS3375	Internet provider	Verizon Business
166.37.240.0/20 since Apr 2014	AS3375	Internet provider	Verizon Business
166.38.34.0/24 since May 2021	AS3372	Internet provider	Verizon Business
166.38.38.0/24 since Jun 2011	AS3372	Internet provider	Verizon Business
166.38.52.0/24 since Dec 2016	AS3372	Internet provider	Verizon Business
166.38.53.0/24 since Dec 2016	AS3372	Internet provider	Verizon Business
166.38.76.0/22 since Apr 2011	AS3372	Internet provider	Verizon Business
166.38.96.0/19 since Jun 2011	AS3378	Internet provider	Verizon Business
166.38.132.0/23 since Jun 2011	AS3378	Internet provider	Verizon Business
166.38.136.0/23 since Jun 2011	AS3378	Internet provider	Verizon Business
166.38.160.0/21 since Feb 2011	AS3372	Internet provider	Verizon Business
166.38.163.0/24 since Apr 2011	AS3372	Internet provider	Verizon Business
166.38.168.0/21 since Sep 2016	AS3372	Internet provider	Verizon Business
166.38.176.0/24 since Nov 2019	AS3372	Internet provider	Verizon Business
166.38.178.0/24 since Nov 2019	AS3372	Internet provider	Verizon Business
166.38.179.0/24 since Nov 2019	AS3372	Internet provider	Verizon Business
166.38.180.0/24 since Mar 2016	AS3372	Internet provider	Verizon Business
166.38.181.0/24 since Mar 2016	AS3372	Internet provider	Verizon Business
166.38.182.0/24 since Mar 2016	AS3372	Internet provider	Verizon Business
166.38.183.0/24 since Mar 2016	AS3372	Internet provider	Verizon Business
166.38.188.0/24 since May 2016	AS3372	Internet provider	Verizon Business
166.38.189.0/24 since May 2016	AS3372	Internet provider	Verizon Business
166.38.190.0/24 since May 2016	AS3372	Internet provider	Verizon Business
166.38.191.0/24 since May 2016	AS3372	Internet provider	Verizon Business
166.38.192.0/19 since Oct 2011	AS3372	Internet provider	Verizon Business
166.38.192.0/20 since Oct 2011	AS3372	Internet provider	Verizon Business
166.38.208.0/20 since Oct 2011	AS3372	Internet provider	Verizon Business
166.38.224.0/20 since Apr 2011	AS3372	Internet provider	Verizon Business
166.39.0.0/20 since Oct 2010	AS3372	Internet provider	Verizon Business
166.39.64.0/20 since Mar 2011	AS3372	Internet provider	Verizon Business
166.39.80.0/20 since Apr 2011	AS3372	Internet provider	Verizon Business
166.39.116.0/22 since Jun 2010	AS3372	Internet provider	Verizon Business
166.39.120.0/21 since Jun 2010	AS3372	Internet provider	Verizon Business
166.39.128.0/20 since Feb 2011	AS3372	Internet provider	Verizon Business
166.39.144.0/21 since Feb 2011	AS3372	Internet provider	Verizon Business
166.39.152.0/21 since Feb 2011	AS3372	Internet provider	Verizon Business
166.39.208.0/20 since Apr 2011	AS3372	Internet provider	Verizon Business
166.40.112.0/20 since Oct 2010	AS3372	Internet provider	Verizon Business
166.40.161.0/24 since Apr 2011	AS3372	Internet provider	Verizon Business
166.40.162.0/24 since Apr 2011	AS3372	Internet provider	Verizon Business
166.40.163.0/24 since Feb 2011	AS3372	Internet provider	Verizon Business
166.40.164.0/23 since Feb 2011	AS3372	Internet provider	Verizon Business
166.40.166.0/23 since Sep 2018	AS3372	Internet provider	Verizon Business
166.40.169.0/24 since Apr 2011	AS3372	Internet provider	Verizon Business
166.40.172.0/23 since May 2019	AS3372	Internet provider	Verizon Business
166.40.216.0/21 since Apr 2019	AS3372	Internet provider	Verizon Business
166.41.16.0/20 since Oct 2010	AS3372	Internet provider	Verizon Business
166.41.32.0/19 since Oct 2010	AS3372	Internet provider	Verizon Business
166.41.144.0/20 since Jun 2010	AS3372	Internet provider	Verizon Business
166.41.160.0/20 since Jun 2010	AS3372	Internet provider	Verizon Business
166.41.168.0/22 since May 2016	AS3372	Internet provider	Verizon Business
166.41.176.0/20 since Jun 2010	AS3372	Internet provider	Verizon Business
166.41.192.0/20 since May 2012	AS3372	Internet provider	Verizon Business
166.43.0.0/16 since Sep 2021	AS3371	Internet provider	Verizon Business
166.43.144.0/20 since Nov 2021	AS3372	Internet provider	Verizon Business
166.43.160.0/20 since Sep 2021	AS3372	Internet provider	Verizon Business
166.43.176.0/20 since Sep 2021	AS3372	Internet provider	Verizon Business
166.44.240.0/24 since Mar 2018	AS3377	Internet provider	Verizon Business
166.44.241.0/24 since May 2005	AS3377	Internet provider	Verizon Business
166.44.248.0/22 since Mar 2018	AS3371	Internet provider	Verizon Business
166.46.112.0/20 since Mar 2011	AS3372	Internet provider	Verizon Business
166.46.160.0/20 since Mar 2011	AS3372	Internet provider	Verizon Business
166.46.176.0/20 since Jun 2010	AS3372	Internet provider	Verizon Business
166.46.192.0/20 since Apr 2011	AS3372	Internet provider	Verizon Business
166.46.224.0/20 since Jun 2010	AS3372	Internet provider	Verizon Business
166.47.8.0/24	AS701	Internet provider	Verizon Business
166.47.144.0/20 since Jun 2010	AS3372	Internet provider	Verizon Business
166.47.160.0/20 since Jun 2010	AS3372	Internet provider	Verizon Business
166.47.240.0/20 since Apr 2011	AS3372	Internet provider	Verizon Business

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
166.32.0.0 - 166.40.255.255	589,824	MCI-NETCS3	Verizon Business (MCICS) · US	Direct Allocation	Dec 9, 1996	abuse@verizon.com
166.41.0.0/16	65,536	MCI-NETCS12	Verizon Business (MCICS) · US	Direct Allocation	Mar 24, 1993	abuse@verizon.com
166.42.0.0 - 166.44.255.255	196,608	MCI-NETCS13	Verizon Business (MCICS) · US	Direct Allocation	Mar 24, 1993	abuse@verizon.com
166.45.0.0/16	65,536	MCI-NETCS16	Verizon Business (MCICS) · US	Direct Allocation	Mar 24, 1993	abuse@verizon.com
166.46.0.0/15	131,072	MCI-NETCS17	Verizon Business (MCICS) · US	Direct Allocation	Mar 24, 1993	abuse@verizon.com

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

1,048,576 addresses

Type	Addresses	Share	Ranges
Internet provider	1,047,040	>99%	173
Residential	1,536	0.15%	6

Network & registry

Announcement Routing history Whois & abuse

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern: Stable
First seen: May 2005
Current origin since: Nov 2011 · 15 yr
Origin networks: 2
Last change of origin: Nov 2011

Recorded history

History

Handoffs: 1