AS9642 — KISA Korea Internet Security Agency
AS9642 announces 2 IPv4 prefixes covering 1,024 addresses and 0 IPv6 prefixes.
About this network
AS9642 (KISA) is held by the Korea Internet & Security Agency, a sub-organisation of South Korea's Ministry of Science and ICT. KISA was formed in 2009 from the merger of three predecessor bodies, and it carries an unusually broad remit: it operates KRNIC, the national registry that administers the .kr and .한국 domains and Korea's IP address space, and it runs the country's internet-security programmes, including the KrCERT/CC national CERT.
What it's used for
RIS sees 4 IPv4 prefixes carrying 1,024 addresses, no IPv6, and 2 observed neighbours. That is a small, multi-homed government network, and for a national registry it is exactly the right size: the things KISA must keep publicly reachable are registry and whois services, .kr domain infrastructure, its security-portal and reporting sites, and the public-facing systems its CERT and registry functions depend on. None of that needs a large address footprint; all of it needs to stay up, which is why two upstreams and provider-independent space matter more here than volume.
The four prefixes pair up neatly: 61.248.224.0/24 with 61.248.225.0/24, and 211.252.150.0/24 with 211.252.151.0/24. Two adjacent /24s announced separately rather than aggregated into a /23 is a common pattern where each half serves a distinct site or function and the operator wants the option to move them independently.
KISA also holds AS9640 under the KRCERT-AS-KR handle. Of the two, AS9642 is the one RIS actually observes originating routes.
Notable
- The national registry and the national CERT for the same country live under this one organisation, which is why the same agency shows up twice in this AS range.
- KISA administers Korea's IP address allocations, making it one of the few holders in this sweep that is itself part of the registry system it appears in.
- No IPv6 is announced from this AS, which is notable given that KISA is the agency administering Korea's IPv6 address allocations.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 61.248.224.0/23
- 211.252.150.0/23
Upstream networks
Adjacent networks
Routing security
- RPKI: 0 valid, 0 invalid and 4 not-found announcements; 0 ROAs.
- ASPA: none published.
- IRR: 100% of announcements registered; 7 route objects.
- Listed in as-sets: AS-ANC-CUSTOMER-PROXY-REGISTER, AS-HANARO, AS-HURRICANE, AS-KORNETBGP, AS-SKBROADBAND, AS-XO-B, AS3491:AS-CUSTOMERS-AP, AS3491:AS-CUSTOMERS-TEST.
awaiting query
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