AS4721 219.124.224.0/19 CIDR and IP Range Summary.ASN: 4721 - JCN JCOM Co. Ltd.Host Count: 8190Addressable IPs: 8192219.124.224.0/24219.124.225.0/24219.124.226.0/24219.124.227.0/24219.124.228.0/24219.124.229.0/24219.124.230.0/24219.124.231.0/24219.124.232.0/24219.124.233.0/24219.124.234.0/24219.124.235.0/24219.124.236.0/24219.124.237.0/24219.124.238.0/24219.124.239.0/24219.124.240.0/24219.124.241.0/24219.124.242.0/24219.124.243.0/24219.124.244.0/24219.124.245.0/24219.124.246.0/24219.124.247.0/24219.124.248.0/24219.124.249.0/24219.124.250.0/24219.124.251.0/24219.124.252.0/24219.124.253.0/24219.124.254.0/24219.124.255.0/24