AS10165 KOREA CUSTOMS SERVICE

CUSTOMS-AS-KR-KR - KOREA CUSTOMS SERVICE · registered in South Korea

IPv4 addresses1,5362 prefixes · <0.001% of announced IPv4

Rank in South Korea#419largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#26,438of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS10165 in ASN lookup Look up an IP in this network (211.173.40.1) All networks in South Korea

IPv4 prefixes

All 2 prefixes, in address order.

211.173.40.0/22
211.173.44.0/23

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS9699#416 KFB-AS-KR - Standard Chartered1,536

AS9704#417 DONGWON-AS-KR - Korea Investment Trust Management Securities Co.,LTD1,536

AS9759#418 CJCYBER-AS-KR - HIINVESTMENT SECURITIES CO., LTD1,536

AS10179#420 DAETOO-AS-KR - Daehan Investment Trust Securities1,536

AS17592#421 IBK-AS-KR-KR - Industrial Bank of Korea1,536

AS18314#422 KEBHANACARDNET-AS-KR-KR - Hana Card1,536

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