Autonomous system
AS55384 JAIST-EXP Japan Advanced Institute of Science and Technology
Unclassified ARIN
Summary
Japan Advanced Institute of Science and Technology
education research university
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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS2500 | WIDE Project | 93 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 16.38K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS55384- Registry name
- JAIST-EXP
- Registered
- 2010-01-18
- Last changed
- 2019-07-17
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS55384
- ASPA
- no ASPA record
- IRR
- 50% registered · 1 of 2 announcements
- Route objects
- 1 naming AS55384
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,781 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere