asn.dev

Autonomous system

AS18310 SKB-VITSSEN-AS-KR SK Broadband Co Ltd

Unclassified APNIC

IPv4 addresses 137K 16 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

SK Broadband

Korea, Republic of · AI-generated

residential isp broadband korea

SKB-VITSSEN-AS-KR is operated by SK Broadband Co Ltd.

What it's used for

  • The address space carries consumer broadband traffic, evidenced by the consistent broadNnet-KR netname across all listed prefixes.
  • With 137216 IPv4 addresses announced across 16 prefixes and only 1 observed neighbour, the high address-to-neighbour ratio indicates a large access or eyeball network rather than a transit provider.

Notable

  • All registrants for the sampled prefixes are IRT-KRNIC-KR, which aligns with the announcer SK Broadband Co Ltd as the primary holder of this space in Korea.
  • The inventory consists of 16 IPv4 prefixes with no IPv6 prefixes announced, reflecting a legacy IPv4-centric deployment typical of older Korean ISP infrastructure.
  • The largest block is 27.112.128.0/17, with the remaining space subdivided into /18, /19, /20, and /22 blocks.

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 Ltd992

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 16 prefixes · 137K addresses IPv6 0 prefixes

CountryNamePrefixes
KRKorea, Republic of16

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS18310
Registry name
SKB-VITSSEN-AS-KR-KR
Abuse contact
hostmaster@nic.or.kr
Registered
2002-07-05
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 16 with no ROA
ROAs
0 authorising AS18310
ASPA
no ASPA record
IRR
100% registered · 16 of 16 announcements
Route objects
399 naming AS18310

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: 440 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

Cross-check