asn.dev

Autonomous system

AS55909 KOCHI-CT National Institute of Technology, Kochi College

Unclassified APNIC

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

National Institute of Technology, Kochi College

Japan · AI-generated

education research japan

KOCHI-CT is the autonomous system for National Institute of Technology, Kochi College.

What it's used for

  • The space carries the institutional network of the college, identified by the netname KCT-NET-CIDR-BLK-JP and the registrant Japan Network Information Center; IRT-JPNIC-JP.
  • The AS announces 256 IPv4 addresses and 1 IPv6 prefix, with a single observed neighbour, indicating a small, self-contained campus network rather than a transit or large-scale access provider.
  • Traffic from this AS consists of academic and research communications associated with the National Institute of Technology, Kochi College, a Japanese technical institution.

Notable

  • The RDAP registrant for the announced prefix 103.12.158.0/24 is Japan Network Information Center; IRT-JPNIC-JP, which is the standard registry for Japanese IP space and aligns with the announcer's identity.
  • The address inventory consists of a single /24 IPv4 block and a single /48 IPv6 prefix, representing a compact allocation typical for a small educational facility.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS2907Research Organization of Information and Systems, National Institute of Informatics97

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 1 prefixes · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
JPJapan2

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS55909
Registry name
kochi-ct
Registered
2010-11-29
Last changed
2021-01-22
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS55909
ASPA
no ASPA record
IRR
0% registered · 0 of 4 announcements
Route objects
0 naming AS55909

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: 436 networks and 1,771 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