AS131795 KOREA INSTITUTE OF ENERGY RESEARCH

KIER-AS-KR-KR - KOREA INSTITUTE OF ENERGY RESEARCH · registered in South Korea

IPv4 addresses3,3287 prefixes · <0.001% of announced IPv4

Rank in South Korea#341largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#17,792of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS131795 in ASN lookup Look up an IP in this network (203.241.220.1) All networks in South Korea

IPv4 prefixes

All 7 prefixes, in address order.

203.241.220.0/22
210.98.0.0/22
210.98.4.0/24
210.98.13.0/24
210.98.45.0/24
210.98.57.0/24
210.98.58.0/24

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS23601#338 TAEKWANG-AS-KR-KR - tsis3,328

AS38667#339 KAKAOBANK-AS-KR-KR - KakaoBank Corp.3,328

AS55626#340 KYUNGIN-AS-KR-KR - Kyungin Womens college3,328

AS23600#342 GDNSKR-KR-KR - Korea Internet Security Agency3,072

AS7559#343 DONGA-NET-AS-KR - donga.com3,072

AS9773#344 HANCOMWITH-AS-KR-KR - HancomWITH3,072

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