AS59128 Kyoto University Microcomputer Club

KMC - Kyoto University Microcomputer Club · registered in Japan

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Japan#668largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#61,474of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryJapan745 ASNs registered there

Open AS59128 in ASN lookup Look up an IP in this network (192.50.220.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

192.50.220.0/24

IPv6 prefixes

All 1 prefix.

2001:df0:8500::/48

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS58651#665 GMO-REG-R2 - GMO Internet, Inc.256

AS59111#666 AIU-NET - Akita International University256

AS59115#667 CYBERDYNE - CYBERDYNE Inc.256

AS62184#669 MNO-AS Michal Nowak256

AS131079#670 KANDANET4 - INTERNET MULTIFEED CO.256

AS131156#671 LAC-AS - LAC Co., Ltd.256

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