Autonomous system profile

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

AS131946

Announcement observedAPNIC

MU-NET - MUSASHINO UNIVERSITY E.F. · MU-NET

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

Last active10/6/2026, 16:32:12Snapshot expired

View network topology RDAP registration

ASN: AS131946
Registration country: Japan
Name: MU-NET - MUSASHINO UNIVERSITY E.F.
Abbreviation: MU-NET
Registration date: Not recorded
Status: Announcement observed
RIR: APNIC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
202.240.108.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/22/2026, 08:00:00	10/30/2026, 16:00:00	✓	×	Currently valid
202.240.108.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/22/2026, 08:00:00	10/30/2026, 16:00:00	✓	×	Currently valid
202.240.109.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/22/2026, 08:00:00	10/30/2026, 16:00:00	✓	×	Currently valid

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

Registration and sources

Organization: MU-NET - MUSASHINO UNIVERSITY E.F.
RIR: APNIC
Registration country: Japan
Registration date: Not recorded
Abuse contact: Not recorded

Snapshot trend

10/6/2026, 16:32:123 v40 v62 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