asn.dev

Autonomous system

AS59104 SOKAU-AS Soka University

Unclassified APNIC

IPv4 addresses 65.54K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 0 recorded by PCH
Upstreams — not observed
Flagged prefixes 0 none

Summary

Soka University

Japan · AI-generated

education university japan

SOKAU-AS is operated by Soka University.

What it's used for

  • The address space is registered under the netname JAPAN150 with the Japan Network Information Center.
  • The AS announces a single IPv4 prefix, 150.37.0.0/16, comprising 65536 addresses, with 2 observed routing neighbours.
  • This ratio of a large address block to a minimal number of peers indicates an internal corporate estate for a university campus, rather than a transit or access provider.

Notable

  • The registrant for the announced prefix is the Japan Network Information Center, which is consistent with the announcer being a Japanese educational institution.
  • Soka University is a private university in Hachioji City, Japan, affiliated with the Soka Gakkai.
  • The inventory consists of one contiguous /16 block with no announced IPv6 prefixes.

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.

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 1 prefixes · 65.54K addresses IPv6 0 prefixes

CountryNamePrefixes
JPJapan1

Registry

Allocation record

APNIC · via Atlas (registry data)
Registry
APNIC
Registered
2013-09-09
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS59104
ASPA
no ASPA record
IRR
0% registered · 0 of 3 announcements
Route objects
0 naming AS59104

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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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