AS4721 202.83.184.0/21 CIDR and IP Range Summary.ASN: 4721 - JCN JCOM Co. Ltd.Host Count: 2046Addressable IPs: 2048202.83.184.0/24202.83.185.0/24202.83.186.0/24202.83.187.0/24202.83.188.0/24202.83.189.0/24202.83.190.0/24202.83.191.0/24