Autonomous system profile

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

AS9591

Announcement observedAPNIC

NIFS - National Institute for Fusion Science · NIFS

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

Last active9/30/2026, 00:18:05Snapshot expired

View network topology RDAP registration

ASN: AS9591
Registration country: Japan
Name: NIFS - National Institute for Fusion Science
Abbreviation: NIFS
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
133.75.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	9/29/2026, 16:00:00	✓	×	Historical record
133.75.232.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	9/29/2026, 16:00:00	✓	×	Historical record

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

Registration and sources

Organization: NIFS - National Institute for Fusion Science
RIR: APNIC
Registration country: Japan
Registration date: Not recorded
Abuse contact: hostmaster@nic.ad.jp

Snapshot trend

9/30/2026, 00:18:052 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