asn.dev

Autonomous system

AS9957 KINX-AS KINX

Hosting ARIN

IPv4 addresses 7.68K 32 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly KR
Exchanges 3 recorded by PCH
Upstreams 9 37 downstream
Flagged prefixes 7 see address space

Summary

KINX (Korea Internet Neutral Exchange)

South Korea · AI-generated

hosting ixp transit legacy

AS9957 (KINX-AS-KR) is held by KINX Inc., the carrier-neutral internet exchange and data-centre operator in Seoul. KINX runs Korea's carrier-neutral layer-2 IX alongside a set of internet data centres, a CDN, and cloud/interconnect products — so this ASN sits at the infrastructure layer, not the eyeball layer.

What it's used for

RIS sees 35 announced IPv4 prefixes totalling 12,800 addresses, no IPv6, and 77 observed BGP neighbours. The neighbour count is the tell. Seventy-seven peers on only ~12.8k addresses is far more BGP fan-out than an enterprise or campus of the same size would ever have, and it is exactly what you expect from a company whose business is interconnection: members and colocation customers of a neutral exchange end up adjacent to the operator's own AS.

The prefix list backs that up. One /20 aggregate (203.238.176.0/20) provides the bulk, and the remaining ~34 announcements are individual /24s scattered across 121.78/16, 1.201/16, 49.50/16, 182.161/16 and 139.150/16. Per-customer /24s carved out of several ranges is the normal inventory of a colocation and hosting provider assigning space to tenants, rather than a single organisation numbering its own users.

Notable

  • KINX is a B2B infrastructure company: IX, IDC colocation, CDN, cloud and direct-connect to the major public clouds. Traffic in this ASN should be read as hosted and colocated services, not residential subscribers.
  • An IX operator's peering LAN is a separate resource from its own AS — AS9957 is the company network, so peering-fabric addresses are not necessarily inside these announcements.
  • Despite being an interconnection specialist, the ASN announces no IPv6 in RIS.

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

Recorded at 3 exchanges in 3 countries, largest first.

ExchangeLocationTheir address
AMS-IX AmsterdamAmsterdam, Netherlands80.249.210.5
Hong Kong Internet ExchangeHong Kong, China2001:7fa:0:1::ca28:a08e
Korea Internet Neutral Exchange KINXSeoul, South Korea139.150.100.2

Transit providers

9 upstream, 37 downstream and 86 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4766Korea Telecom793
AS3491PCCW Global (HK) Ltd.661
AS174Cogent Communications, LLC131
AS58453China Mobile International Limited79
AS6939Hurricane Electric LLC64
AS4637Telstra Global57
AS2914NTT America, Inc.13
AS9286KINX4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 32 prefixes · 7.68K addresses IPv6 0 prefixes

CountryNamePrefixes
KRKorea, Republic of32

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS9957
Registry name
KINX-AS-KR
Abuse contact
hostmaster@nic.or.kr
Registered
2000-04-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 36 with no ROA
ROAs
0 authorising AS9957
ASPA
no ASPA record
IRR
89% registered · 32 of 36 announcements
Route objects
123 naming AS9957

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: 442 networks and 1,771 prefixes, as published 2026-10-15. 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