Autonomous system profile

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

AS3378

Announcement observedARIN

MCI-ASN - Verizon Business · MCI-ASN

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

Last active9/29/2026, 10:32:48Snapshot expired

View network topology RDAP registration

ASN: AS3378
Registration country: United States
Name: MCI-ASN - 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
142.77.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
142.77.14.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
142.77.32.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
142.77.46.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
142.77.72.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
142.77.8.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
142.77.80.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
146.1.1.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
146.1.16.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
146.1.192.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
146.1.2.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
146.1.24.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
146.1.4.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
146.1.40.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
146.1.6.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
159.24.64.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
159.98.104.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
159.98.112.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
159.98.72.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
162.47.128.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
162.47.144.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
162.47.146.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
165.122.128.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
166.34.64.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
166.38.132.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
166.38.136.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
166.38.96.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
198.168.54.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
198.168.73.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
199.249.16.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
199.249.18.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
199.249.19.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
199.249.20.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
199.249.21.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
199.249.22.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
199.249.23.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
199.249.29.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record
205.150.160.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/13/2026, 00:00:00	✓	×	Historical record

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

Registration and sources

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

Snapshot trend

9/29/2026, 10:32:4838 v40 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 · rir-rdap-asn · iana-rdap-asn-bootstrap