AS23975 Yonam Institute of Technology

YC-AS-KR-KR - Yonam Institute of Technology · registered in South Korea

IPv4 addresses4,0965 prefixes · <0.001% of announced IPv4

Rank in South Korea#322largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#15,824of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS23975 in ASN lookup Look up an IP in this network (203.255.224.1) All networks in South Korea

IPv4 prefixes

All 5 prefixes, in address order.

203.255.224.0/21
220.66.19.0/24
220.66.20.0/23
220.66.111.0/24
220.66.112.0/22

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS17845#319 GTP-AS-KR-KR - Gyeonggi Technopark4,096

AS17846#320 SKB-H-AS-KR-KR - SK Broadband Co Ltd4,096

AS23581#321 HYNIX-AS-KR-KR - Hynix Semiconductor Inc.4,096

AS131093#323 VIVATOSS-AS-KR-KR - viva republica4,096

AS2385#324 KRIBB-AS-KR-KR - KRIBB(Korea Research Institute of Bioscience Biotechnology)3,840

AS9532#325 SECURITIES-AS-KR - MIRAE ASSET SECURITIES CO., LTD.3,840

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