AS45560 TOPNET. IP Transit AS

TOPNET-IPT-AS-AP - TOPNET. IP Transit AS · registered in South Korea

IPv4 addresses3,5846 prefixes · <0.001% of announced IPv4

Rank in South Korea#334largest network in KR by IPv4 space, of 853 · <0.01% of KR

Rank worldwide#17,235of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountrySouth Korea869 ASNs registered there

Open AS45560 in ASN lookup Look up an IP in this network (64.188.38.1) All networks in South Korea

IPv4 prefixes

All 6 prefixes, in address order.

64.188.38.0/23
64.188.40.0/22
64.188.44.0/24
112.78.27.0/24
112.78.104.0/22
123.255.230.0/23

Similar-sized networks in South Korea

ASNNameIPv4 addresses

AS46012#331 INDUK-AS-KR-KR - Induk University3,840

AS23561#332 YONGINUNIVERSITY-AS-KR-KR - Yongin University3,584

AS38114#333 TERANET-AS-KR-KR - Shinjin Network3,584

AS149522#335 ONECUBITCOLTD-AS-AP - OneCubit Co., Ltd.3,328

AS9972#336 INTINFRA-AS-KR-KR - INTMANAGEMENT Corp.,3,328

AS10178#337 KAKAOPAY-AS-KR-KR - Kakaopay Corp3,328

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