AS17958 220.247.184.0/21 CIDR and IP Range Summary.ASN: 17958 - KCV Kasaoka Cable Vision Co LTD.Host Count: 2046Addressable IPs: 2048220.247.184.0/24220.247.185.0/24220.247.186.0/24220.247.187.0/24220.247.188.0/24220.247.189.0/24220.247.190.0/24220.247.191.0/24