AS131830 Institute for Basic Science

IBS-AS-KR-KR - Institute for Basic Science · registered in South Korea

IPv4 addresses7683 prefixes · <0.001% of announced IPv4

Rank in South Korea#576largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#44,955of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS131830 in ASN lookup Look up an IP in this network (203.241.119.1) All networks in South Korea

IPv4 prefixes

All 3 prefixes, in address order.

203.241.119.0/24
203.247.183.0/24
203.247.189.0/24

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS131792#573 DGBDRCENTER-AS-KR-KR - IM Bank768

AS131799#574 COMWEL-AS-KR-KR - korea workers compensation welfare service768

AS131819#575 DSC-AS-KR-KR - Doosan Engineering Construction Co.,Ltd768

AS131864#577 HWDMZ-AS-KR-KR - Firstfire Marine Insurance768

AS152198#578 GWACKR-AS-KR-KR - Gangwon State University768

AS152204#579 JWGROUP-AS-KR-KR - JW Holdings768

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