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AS9575 KCTC

South Korea KCTC-AS-KR APNIC 4 IPv4 prefixes 0 IPv6 prefixes
IPv4 addresses
512
IPv6 /48 networks
0
RPKI
0 valid4 no ROA
Peers and downstreams
1

Holder

AS name
KCTC-AS-KR
Description
KCTC
Organisation
KCTC
Abuse contact
Not published
Assigned
1999-07-20

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS174 AS174 AS174 AS174 AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS1299 Arelion Sweden AB AS1299 · SE Arelion Sweden AB AS4766 Korea Telecom AS4766 · KR Korea Telecom AS9575 KCTC AS9575 · KR KCTC

Network health

Grade E · 32/100
fail Prefixes covered by valid ROAs
0 of 4 announced prefixes are RPKI valid, 4 have no ROA.		 0/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
fail Announces IPv6
No IPv6 prefixes are announced.		 0/15
partly More than one upstream
1 upstream seen in BGP.		 5/10
pass Working abuse contact
hostmaster@nic.or.kr is published.		 15/15
fail Publishes a geofeed
No geofeed found. Without one, location databases have to guess.		 0/10
fail No prefixes smaller than /24 or /48
2 prefixes are smaller than most networks accept (203.236.80.0/25, 203.236.80.128/25).		 0/10
n/a Registry record maintained
We have no change date for this record.
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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AS9575 health AS9575 RPKI
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Routing changes

Last 30 days
2026-10-03 18:45 UTCRelationship changed AS3786 upstream to peer
2026-10-03 18:45 UTCNew prefix 211.181.50.0/24

WHOIS

aut-num:        AS9575
as-name:        KCTC-AS-KR-KR
handle:         AS9575
remarks:        KCTC
administrative,technical:PJ4464-KR (AS Manager) <administrator@kctc.co.kr>
abuse:          IRT-KRNIC-KR (IRT-KRNIC-KR) <hostmaster@nic.or.kr>
source:         APNIC (RDAP)