AS55384 — JAIST-EXP - Japan Advanced Institute of Science and Technology

AS55384 announces 1 IPv4 prefixes covering 16,384 addresses and 1 IPv6 prefixes.

About this network

JAIST-EXP is operated by Japan Advanced Institute of Science and Technology.

What it's used for

• The address space carries the institutional network for a postgraduate research university, as indicated by the holder name and the JPNIC registrant JPNIC-NET-JP-ERX.
• The AS announces 16,384 IPv4 addresses within a single /18 prefix (133.4.0.0/18) and one IPv6 prefix, with only 1 observed neighbour, indicating a self-contained internal network rather than a transit or access provider.
• Traffic consists of research, academic, and administrative endpoints for the university's faculty, students, and staff.

Notable

• The RDAP registrant Japan Network Information Center (JPNIC) is the national registry for Japan, consistent with the announcer being a Japanese institution.
• The address inventory is a single contiguous /18 block, typical for a large institutional allocation managed by a national registry.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 133.4.0.0/18
• 2001:df0:2ee::/48

Upstream networks

• AS2500 WIDE Project

Adjacent networks

• AS2500 WIDE Project

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 50% of announcements registered; 1 route objects.
• Listed in as-sets: AS-2500-2914, AS-BBIX-T, AS-BBIX-T-V6, AS-HANABI, AS-OCN, AS-OCN, AS-OCN-V6, AS-OCN-V6, AS-WIDE, AS-WIDE-V6, AS20965:AS-FROM-TEIN-TO-GEANT, AS2500:AS-TRANSIT, AS293:AS-FROM-SINGAREN-TO-ESNET.