asn.dev

Autonomous system

AS46009 YABESK-AS-KR-KR - YABESK

Unclassified APNIC

IPv4 addresses 10.75K 19 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly KR
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

YABESK

Korea, Republic of · AI-generated

korea telecom business

The AS handle YABESK-AS-KR is held by YABESK.

What it's used for

  • The address space carries netnames KORNET-KR and SK-TELECOM-NET-KR, indicating infrastructure associated with Korean telecommunications networks.
  • The AS announces 10,752 IPv4 addresses across 19 prefixes with only 2 observed neighbours, a ratio that suggests an access or internal network role rather than transit.
  • Traffic from this AS consists of subscriber or enterprise endpoints within the South Korean telecommunications ecosystem.

Notable

  • Registrants for all sampled prefixes are IRT-KRNIC-KR, which aligns with the Korean Internet Registry, while the netnames point to KORNET-KR and SK-TELECOM-NET-KR.
  • The inventory is composed of 19 IPv4 prefixes with no IPv6 announcements, showing a purely IPv4-based estate.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4766Korea Telecom1,775
AS9318SK Broadband Co Ltd520

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-04, 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 19 prefixes · 10.75K addresses IPv6 0 prefixes

CountryNamePrefixes
KRKorea, Republic of19

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS46009
Registry name
YABESK-AS-KR-KR
Abuse contact
hostmaster@nic.or.kr
Registered
2009-11-10
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 40 with no ROA
ROAs
0 authorising AS46009
ASPA
no ASPA record
IRR
75% registered · 30 of 40 announcements
Route objects
29 naming AS46009

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: 452 networks and 1,853 prefixes, as published 2026-11-05. 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