Autonomous system profile

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

AS231

Announcement observedARIN

Michigan State University · MISU-231

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

Last active10/16/2026, 00:00:00Snapshot expired

View network topology RDAP registration

ASN: AS231
Registration country: United States
Name: Michigan State University
Abbreviation: MISU-231
Registration date: 6/28/2021, 14:56:13
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
192.108.188.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/17/2026, 00:00:00	✓	×	Historical record
192.108.190.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/17/2026, 00:00:00	✓	×	Historical record
192.108.191.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/17/2026, 00:00:00	✓	×	Historical record
192.231.113.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/17/2026, 00:00:00	✓	×	Historical record
35.12.240.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/17/2026, 00:00:00	✓	×	Historical record
35.20.0.0/14BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/17/2026, 00:00:00	✓	×	Historical record
35.8.0.0/13BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/17/2026, 00:00:00	✓	×	Historical record

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

Registration and sources

Organization: Michigan State University
RIR: ARIN
Registration country: United States
Registration date: 6/28/2021, 14:56:13
Abuse contact: abuse@msu.edu

Snapshot trend

9/29/2026, 06:12:507 v42 v63 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 · cha-la-bgp-observations