AS38123 asan medical center

AMCSEOUL-AS-KR-KR - asan medical center · registered in South Korea

IPv4 addresses2,0486 prefixes · <0.001% of announced IPv4

Rank in South Korea#381largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#23,257of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS38123 in ASN lookup Look up an IP in this network (1.233.2.1) All networks in South Korea

IPv4 prefixes

All 6 prefixes, in address order.

1.233.2.0/24
210.122.170.0/23
210.122.172.0/23
211.109.239.0/24
211.245.65.0/24
211.245.254.0/24

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS17859#378 CBNET-AS-KR-KR - NICEINFOMATIONSERVICE2,048

AS23553#379 IITA-AS-KR-KR - National IT Industry Promotion Agency2,048

AS24027#380 CUE-AS-KR-KR - Chinju National University of Education2,048

AS38400#382 GOEPT-AS-KR-KR - Gyeonggi-do Pyongtaek Office Education2,048

AS38402#383 GOESW-AS-KR-KR - Gyeonggi Provincial Suwon Office of Education2,048

AS45393#384 SFS-AS-KR-KR - SFS2,048

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