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AS131099
AS131099 Korea Internet Security Agency
CDNSKR-AS-KR-KR - Korea Internet Security Agency · registered in South Korea
IPv4 addresses 512 2 prefixes · <0.001% of announced IPv4
Rank in South Korea #683 largest network in KR by IPv4 space, of 853 · <0.01% of KR
Rank worldwide #53,146 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
IPv4 prefixes
All 2 prefixes, in address order.
1.18.118.0/24 210.101.61.0/24
Other ASNs named Korea Internet Security Agency
9 other networks use the same organisation name; together with AS131099 they announce 15,616 IPv4 addresses.
ASN Name IPv4 addresses
AS9858 KRNICNET-KR - Korea Internet Security Agency KR 5,120 AS23600 GDNSKR-KR-KR - Korea Internet Security Agency KR 3,072 AS9640 KRCERT-AS-KR-KR - Korea Internet Security Agency KR 2,048 AS23596 EDNSKR-KR-KR - Korea Internet Security Agency KR 1,280 AS23599 DDNSKR-KR-KR - Korea Internet Security Agency KR 1,024 AS9642 KISA-KR - Korea Internet Security Agency KR 1,024 AS131100 FDNSKR-AS-KR-KR - Korea Internet Security Agency KR 768 AS131098 BDNSKR-AS-KR-KR - Korea Internet Security Agency KR 512 AS9755 RPKINET1-KR - Korea Internet Security Agency KR 256
Similar-sized networks in South Korea
ASN Name IPv4 addresses
AS55630 #680 KSNET-AS-KR-KR - KSNET.Inc512 AS55633 #681 DMC-AS-KR-KR - pundang jesaeng general hospital512 AS131098 #682 BDNSKR-AS-KR-KR - Korea Internet Security Agency512 AS131794 #684 KYOBOAXA-AS-KR-KR - KYOBO AXA INVESTMENT MANAGERS Co., Ltd.512 AS131798 #685 SSNW-AS-KR-KR - Sangsang Networks Co., Ltd.512 AS131805 #686 NHSAVINGSBANK-AS-KR-KR - NHSAVINGSBANK512
IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources