asn.dev

Autonomous system

AS23600 GDNSKR-KR Korea Internet Security Agency

Hosting AFRINIC

IPv4 addresses 3.07K 11 prefixes
IPv6 prefixes 4 counted as prefixes, not addresses
Countries 1 mostly KR
Exchanges 0 recorded by PCH
Upstreams 4 2 downstream
Flagged prefixes 0 none

Summary

Korea Internet Security Agency

Korea, Republic of · AI-generated

government security infrastructure korea

GDNSKR-KR is operated by the Korea Internet Security Agency.

What it's used for

  • The address space carries infrastructure for the national internet security agency, with netnames KRNIC-NET-KR and broadNnet-KR registered to IRT-KRNIC-KR.
  • The AS announces 3072 IPv4 addresses across 11 prefixes and 4 IPv6 prefixes, with 6 observed neighbours, indicating a specialized government infrastructure role rather than mass consumer access.

Notable

  • Registrants for all listed prefixes are IRT-KRNIC-KR, consistent with the Korea Internet & Security Agency's management of national internet resources.
  • The inventory consists of 11 IPv4 prefixes and 4 IPv6 prefixes, including a /23 block at 1.18.132.0/23 and multiple /24 blocks across various ranges.

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

4 upstream, 2 downstream and 12 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS9318SK Broadband Co Ltd413
AS4766Korea Telecom270
AS8763DENIC eG129
AS9858Korea Internet Security Agency119

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 11 prefixes · 3.07K addresses IPv6 4 prefixes

CountryNamePrefixes
KRKorea, Republic of15

Registry

Allocation record

AFRINIC · via Atlas (registry + RDAP)
Registry
AFRINIC
Handle
AS23600
Registry name
GDNSKR-KR-KR
Abuse contact
hostmaster@nic.or.kr
Registered
2002-12-24
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
10% valid · 2 valid, 19 with no ROA
ROAs
2 authorising AS23600
ASPA
no ASPA record
IRR
86% registered · 18 of 21 announcements
Route objects
34 naming AS23600

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 432 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