AS23630 CAC Inc.

CAC-NET - CAC Inc. · registered in Japan

IPv4 addresses12,2883 prefixes · <0.001% of announced IPv4

Rank in Japan#294largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#8,232of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS23630 in ASN lookup Look up an IP in this network (133.32.112.1) All networks in Japan

IPv4 prefixes

All 3 prefixes, in address order.

133.32.112.0/20
210.134.192.0/20
210.156.112.0/20

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS4695#291 URBAN - Enecom,Inc.12,288

AS18075#292 HICAT - Chupicom Inc.12,288

AS18142#293 BIWALOBE - KISTEM Co., Ltd.12,288

AS4785#295 XTOM-AS-JP - xTom11,776

AS17661#296 NHN-JAPAN - NHN Cloud Japan Corporation11,520

AS7529#297 NETIRD - GMO NetIRD, Inc.10,752

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