AS45984 Dongnam Institute of Radiologycal Sciences

DIRS-AS-KR-KR - Dongnam Institute of Radiologycal Sciences · registered in South Korea

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in South Korea#568largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#44,504of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS45984 in ASN lookup Look up an IP in this network (203.253.227.1) All networks in South Korea

IPv4 prefixes

All 2 prefixes, in address order.

203.253.227.0/24
203.253.228.0/23

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS45408#565 KOSAF-AS-KR-KR - KOSAF768

AS45977#566 CKBS-AS-KR-KR - CANON KOREA INC.768

AS45979#567 KBDATA-AS-KR-KR - KB DATA SYSTEMS768

AS45989#569 KLNETCO-AS-KR-KR - KL-Net Corp.768

AS45990#570 HIRANET-AS-KR-KR - Health Insurance Review Assessment Service768

AS55608#571 KBLIFE-AS-KR-KR - KB Life Insurance Co., Ltd.768

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