Autonomous system
AS55904 KOGAKUIN-AS KOGAKUIN University
Unclassified APNIC
Summary
Kogakuin University
education university japan
KOGAKUIN-AS is operated by Kogakuin University.
What it's used for
- The address space carries university infrastructure, evidenced by the reverse DNS record
ax14f.cc.kogakuin.ac.jpand the registrant netnameJPNIC-NET-JP-ERX. - The AS announces 65536 IPv4 addresses within a single /16 prefix and 1 IPv6 prefix, with only 2 observed routing neighbours, indicating a small, self-contained institutional network rather than a transit or large-scale access provider.
- Traffic consists of internal university services, research systems, and administrative endpoints for the institution located in Shinjuku, Tokyo.
Notable
- The RDAP registrant is Japan Network Information Center (JPNIC), which is the standard registry for Japanese address space and aligns with the announcer's identity.
- The inventory consists of a single contiguous IPv4 block and one IPv6 prefix, typical of a dedicated academic allocation.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 · 65.54K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 2 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS55904- Registry name
- KOGAKUIN-AS
- Registered
- 2010-11-29
- Last changed
- 2012-02-29
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS55904
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 4 naming AS55904
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