AS63798 Industrial Cyber Security Center of Excellence

IPA-ENTERNET - Industrial Cyber Security Center of Excellence · registered in Japan

IPv4 addresses9,2162 prefixes · <0.001% of announced IPv4

Rank in Japan#313largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#9,564of 79,396 networks with IPv4

IPv6768 x /482 prefixes

CountryJapan745 ASNs registered there

Open AS63798 in ASN lookup Look up an IP in this network (163.220.192.1) All networks in Japan

IPv4 prefixes

All 2 prefixes, in address order.

163.220.192.0/19
163.220.228.0/22

IPv6 prefixes

All 2 prefixes.

2401:5e40:c100::/40
2401:5e40:c600::/39

Other ASNs named Industrial Cyber Security Center of Excellence

1 other network uses the same organisation name; together with AS63798 they announce 17,408 IPv4 addresses.

ASNNameIPv4 addresses

AS63770ICSCOE-AS - Industrial Cyber Security Center of Excellence JP8,192

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS37922#310 CATVY - Diversitymedia Co.,Ltd.9,216

AS45677#311 ICV - Isahaya Cable Media Co.,Ltd9,216

AS131911#312 HCTV-NET - HONJYO CABLE VISION CO., LTD.9,216

AS24296#314 YAHOO-2 - LY Corporation9,216

AS55899#315 IROB - irob Ltd.8,704

AS37908#316 KBC - KIBI Cable Television Co.,Ltd.8,704

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