Autonomous system profile

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

AS177

Announcement observedARIN

University of Michigan · UMICH-AS-1

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

Last active9/29/2026, 05:53:22Snapshot expired

View network topology RDAP registration

ASN: AS177
Registration country: United States
Name: University of Michigan
Abbreviation: UMICH-AS-1
Registration date: 4/28/1988, 04:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
2001:48a8:68fd::/48BGP · IPv6	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/29/2026, 00:00:00	×	✓	Historical record
2607:f018:fffe::/48BGP · IPv6	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	9/29/2026, 00:00:00	×	✓	Historical record

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

Registration and sources

Organization: University of Michigan
RIR: ARIN
Registration country: United States
Registration date: 4/28/1988, 04:00:00
Abuse contact: report-abuse@umich.edu

Snapshot trend

9/29/2026, 05:53:220 v42 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