AS9978 The University of Seoul

UOS-AS-KR - The University of Seoul · registered in South Korea

IPv4 addresses6,6564 prefixes · <0.001% of announced IPv4

Rank in South Korea#260largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#11,842of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS9978 in ASN lookup Look up an IP in this network (1.229.202.1) All networks in South Korea

IPv4 prefixes

All 4 prefixes, in address order.

1.229.202.0/24
203.249.96.0/20
210.125.176.0/21
222.109.143.0/24

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS9859#257 CCCC-AS-KR - ChungCheong University6,912

AS10167#258 HANVIT-AS-KR - HANVIT BANK6,912

AS17861#259 KIT-AS-KR-KR - KyungNam College of Information Technology6,912

AS10071#261 ANYANG-AS-KR - anyang University6,656

AS23983#262 DJU-AS-KR-KR - Daejeon University6,656

AS38681#263 JNEINET-AS-KR-KR - Jeollanamdo Educational Research Information Institute6,656

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