asn.dev

Autonomous system

AS23793 AIST National Institute of Advanced Industrial Science and Technology

Unclassified APNIC

IPv4 addresses 200K 30 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 6 see address space

Summary

AIST

Japan · AI-generated

government research japan

AIST is the autonomous system for the National Institute of Advanced Industrial Science and Technology.

What it's used for

  • The address space is registered under the netname JAPAN150 with the Japan Network Information Center, indicating a national research institution's infrastructure.
  • The AS announces 199,936 IPv4 addresses across 30 prefixes while maintaining only 1 observed neighbour, a ratio characteristic of a large internal corporate or institutional estate rather than a transit provider.

Notable

  • All sampled registrants are listed as IRT-JPNIC-JP (Japan Network Information Center), which is consistent with the holder being a major Japanese national entity.
  • The address inventory is heavily subdivided, with the majority of prefixes falling within the 150.18.0.0/16 and 150.29.0.0/16 blocks, reflecting site-by-site segmentation for a large organization.

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

Full topology · Graph

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 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS2907Research Organization of Information and Systems, National Institute of Informatics981

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 30 prefixes · 200K addresses IPv6 0 prefixes

CountryNamePrefixes
JPJapan30

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS23793
Registry name
AIST
Abuse contact
hostmaster@nic.ad.jp
Registered
2003-06-16
Last changed
2024-03-18
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 18 with no ROA
ROAs
0 authorising AS23793
ASPA
no ASPA record
IRR
0% registered · 0 of 18 announcements 6 other origin
Route objects
0 naming AS23793

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 1,773 prefixes, as published 2026-10-13. 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

Cross-check