AS55386 FUJITSU LIMITED

FJcloud-West - FUJITSU LIMITED · registered in Japan

IPv4 addresses24,83222 prefixes · <0.001% of announced IPv4

Rank in Japan#225largest network in JP by IPv4 space, of 724 · 0.02% of JP

Rank worldwide#5,457of 79,396 networks with IPv4

IPv63 x /483 prefixes

CountryJapan745 ASNs registered there

Open AS55386 in ASN lookup Look up an IP in this network (61.121.66.1) All networks in Japan

IPv4 prefixes

All 22 prefixes, in address order.

61.121.66.0/24
61.121.124.0/24
61.121.126.0/23
116.83.162.0/23
116.83.164.0/24
121.94.213.0/24
124.24.40.0/21
124.24.48.0/21
125.0.244.0/22
125.1.52.0/22
133.162.80.0/21
133.162.168.0/21
133.162.188.0/24
175.184.16.0/20
175.184.40.0/24
210.131.4.0/24
210.131.16.0/22
220.209.32.0/20
220.209.48.0/22
220.209.72.0/23
222.158.212.0/23
222.158.244.0/23

IPv6 prefixes

All 3 prefixes.

2001:258:8608::/48
2001:258:8615::/48
2001:258:8801::/48

Other ASNs named FUJITSU LIMITED

4 other networks use the same organisation name; together with AS55386 they announce 1,632,512 IPv4 addresses.

ASNNameIPv4 addresses

AS2510INFOWEB - FUJITSU LIMITED JP1,509,376

AS55374FJcloud-East - FUJITSU LIMITED JP57,088

AS58793NIFCLOUD-NET - FUJITSU LIMITED JP33,024

AS23817KOCHI-IDC - Fujitsu Limited. JP8,192

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS131958#222 t-net - Tama Cable Network Co.,Ltd.26,112

AS2915#223 BBIX-OCX - BBIX, Inc.25,600

AS23661#224 CLARA-AS-AP - CLARA, Inc.24,832

AS17950#226 SaiNet-AS - SaiNet24,576

AS23788#227 HICT - JCOM Co., Ltd.24,576

AS4723#228 DOLPHIN - Dolphin23,808

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