AS63770 Industrial Cyber Security Center of Excellence

ICSCOE-AS - Industrial Cyber Security Center of Excellence · registered in Japan

IPv4 addresses8,1926 prefixes · <0.001% of announced IPv4

Rank in Japan#325largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#10,399of 79,396 networks with IPv4

IPv664,765 x /4822 prefixes

CountryJapan745 ASNs registered there

Open AS63770 in ASN lookup Look up an IP in this network (103.95.184.1) All networks in Japan

IPv4 prefixes

All 6 prefixes, in address order.

103.95.184.0/22
163.220.224.0/22
163.220.232.0/21
163.220.240.0/21
163.220.248.0/22
219.100.92.0/22

IPv6 prefixes

All 22 prefixes.

2401:5e40::/36
2401:5e40:1000::/40
2401:5e40:1100::/40
2401:5e40:1200::/39
2401:5e40:1400::/38
2401:5e40:1800::/37
2401:5e40:2000::/35
2401:5e40:4000::/34
2401:5e40:8000::/34
2401:5e40:c000::/40
2401:5e40:c200::/39
2401:5e40:c400::/48
2401:5e40:c404::/46
2401:5e40:c408::/45
2401:5e40:c410::/44
2401:5e40:c420::/43
2401:5e40:c440::/42
2401:5e40:c480::/41
2401:5e40:c500::/40
2401:5e40:c800::/37
2401:5e40:d000::/36
2401:5e40:e000::/35

Other ASNs named Industrial Cyber Security Center of Excellence

1 other network uses the same organisation name; together with AS63770 they announce 17,408 IPv4 addresses.

ASNNameIPv4 addresses

AS63798IPA-ENTERNET - Industrial Cyber Security Center of Excellence JP9,216

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS45691#322 DODO-CORE - DODO K.K.8,448

AS7665#323 OKIX - Okayama Prefectural Government8,192

AS17678#324 WIND - Gunma Internet Co,.ltd8,192

AS18526#326 DDPS - DDPS Networks, LLC8,192

AS45689#327 CONVIVIALNET - Convivial Net8,192

AS7678#328 PROX - Prox System Design Inc.8,192

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