Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS3372

Announcement observedARIN

Verizon Business · MCI-ASN

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/19/2026, 21:51:42Snapshot expired

View network topology RDAP registration

ASN: AS3372
Registration country: United States
Name: Verizon Business
Abbreviation: MCI-ASN
Registration date: 1/6/1994, 05:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
108.11.64.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
151.205.32.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
165.122.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
165.122.0.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/16/2026, 16:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
165.122.160.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/16/2026, 16:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.32.0.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.32.128.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.32.16.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.32.160.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.32.240.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.32.48.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.32.56.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.0.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.11.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.160.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.176.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.192.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.32.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.48.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.52.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.56.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.64.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.33.96.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.34.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.35.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.36.0.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.36.16.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.36.24.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.36.80.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.36.88.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.37.0.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.37.96.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.160.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.163.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.168.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.176.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.178.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.179.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.180.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.181.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.182.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.183.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.188.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.189.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.190.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.191.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.192.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.192.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.208.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid
166.38.224.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/20/2026, 08:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Verizon Business
RIR: ARIN
Registration country: United States
Registration date: 1/6/1994, 05:00:00
Abuse contact: abuse@verizon.com

Snapshot trend

10/19/2026, 21:51:42105 v41 v61 Upstream · 0 Uncertain

10/19/2026, 21:49:08107 v41 v61 Upstream · 0 Uncertain

9/29/2026, 10:32:32105 v41 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn