asn.dev

Autonomous system

AS55586 CATHOLIC-AS-KR THE CATHOLIC UNIVERSITY OF KOREA SONGSIM

Unclassified ARIN

IPv4 addresses 4.61K 9 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly KR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

The Catholic University of Korea

Korea, Republic of · AI-generated

education university korea

CATHOLIC-AS-KR is operated by The Catholic University of Korea.

What it's used for

  • The address space carries university infrastructure, with registrant netnames including broadNnet-KR, KORNET-KR, and KREN-KR under IRT-KRNIC-KR.
  • The AS announces 4,608 IPv4 addresses across 9 prefixes and has 1 observed neighbour, indicating an isolated on-campus network rather than a transit provider.
  • Traffic consists of academic and administrative endpoints for the university's Bucheon campus, including student and staff access.

Notable

  • Registrants are consistent with the announcer, all listed under IRT-KRNIC-KR with netnames reflecting Korean national research and education networks.
  • The inventory is a mix of /22, /23, and /24 blocks, typical of a large institutional allocation subdivided for internal use.

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
AS9318SK Broadband Co Ltd1,116

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 9 prefixes · 4.61K addresses IPv6 0 prefixes

CountryNamePrefixes
KRKorea, Republic of9

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS55586
Registry name
CATHOLIC-AS-KR-KR
Abuse contact
hostmaster@nic.or.kr
Registered
2010-07-21
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 18 with no ROA
ROAs
0 authorising AS55586
ASPA
no ASPA record
IRR
100% registered · 18 of 18 announcements
Route objects
26 naming AS55586

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