AS23599 — DDNSKR-KR Korea Internet Security Agency

AS23599 announces 4 IPv4 prefixes covering 1,024 addresses and 3 IPv6 prefixes.

About this network

DDNSKR-KR is operated by Korea Internet & Security Agency (KISA).

What it's used for

• The address space carries registry infrastructure, evidenced by netnames KRNIC-NET-KR and registrants IRT-KRNIC-KR across all announced IPv4 prefixes.
• The AS announces 1024 IPv4 addresses across 4 prefixes and 3 IPv6 prefixes, with only 4 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.

Notable

• All RDAP registrants align with the announcer, consistently showing IRT-KRNIC-KR for the four IPv4 blocks.
• KISA is the sub-organization of the Ministry of Science and ICT responsible for the allocation and maintenance of South Korea's IPv4 and IPv6 address space, with KRNIC operating under its umbrella.
• The inventory consists of four /24 IPv4 blocks and three /48 IPv6 blocks, all registered to the same KRNIC entity.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 1.18.123.0/24
• 1.18.125.0/24
• 1.18.126.0/24
• 203.83.159.0/24
• 2001:dcc:4::/48
• 2001:dcc:401::/48
• 2001:dcc:403::/48

Upstream networks

• AS9318 SK Broadband Co Ltd
• AS4766 Korea Telecom
• AS9286 KINX
• AS9957 KINX

Adjacent networks

• AS9318 SK Broadband Co Ltd
• AS4766 Korea Telecom
• AS9286 KINX
• AS9957 KINX

Internet exchanges

• Korea Internet Neutral Exchange KINX — Seoul, South Korea