AS131925 FAMILY NET JAPAN INCORPORATED

CYBERHOME2 - FAMILY NET JAPAN INCORPORATED · registered in Japan

IPv4 addresses21,2488 prefixes · <0.001% of announced IPv4

Rank in Japan#240largest network in JP by IPv4 space, of 724 · 0.01% of JP

Rank worldwide#5,918of 79,396 networks with IPv4

IPv65 x /32 (327,680 x /48)2 prefixes

CountryJapan745 ASNs registered there

Open AS131925 in ASN lookup Look up an IP in this network (150.91.192.1) All networks in Japan

IPv4 prefixes

All 8 prefixes, in address order.

150.91.192.0/20
160.237.96.0/19
160.237.160.0/20
160.237.176.0/21
160.237.184.0/22
160.237.188.0/23
160.237.190.0/24
219.100.76.0/22

IPv6 prefixes

All 2 prefixes.

2401:4d44::/30
2406:1940::/32

Other ASNs named FAMILY NET JAPAN INCORPORATED

1 other network uses the same organisation name; together with AS131925 they announce 63,232 IPv4 addresses.

ASNNameIPv4 addresses

AS59125CYBERHOME1 - FAMILY NET JAPAN INCORPORATED JP41,984

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS17958#237 KCV - Kasaoka Cable Vision Co,LTD.21,504

AS24259#238 BC9 - kanuma cable television Corporation21,504

AS17691#239 TikiTiki - NDS Co., Ltd.21,504

AS134351#241 LEASEWEB-AS-AP - Leaseweb Japan K.K.21,248

AS132827#242 GATEWAY-AS-AP - GATEWAY INC21,248

AS23777#243 VIPALETTE - NTT BUSINESS SOLUTIONS CORPORATION20,992

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