AS131964 FAMILYNET JAPAN CORPORATION

CYBERHOME3 - FAMILYNET JAPAN CORPORATION · registered in Japan

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Japan#675largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#61,565of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryJapan745 ASNs registered there

Open AS131964 in ASN lookup Look up an IP in this network (160.237.191.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

160.237.191.0/24

IPv6 prefixes

All 1 prefix.

2400:a140:ffff::/48

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS131895#672 OIST-NET - Okinawa Institute of science and technology256

AS131924#673 KAP-NET - Kansai Airports256

AS131948#674 FORNEXT - FORNEXT Inc.256

AS131984#676 JOCDN - JOCDN Inc.256

AS132119#677 TECPRESSO-NET-AP - TECPRESSO Inc.256

AS132610#678 JPNIC-NET-JP - Japan Network Information Center256

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