AS721 205.73.224.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048205.73.224.0/24205.73.225.0/24205.73.226.0/24205.73.227.0/24205.73.228.0/24205.73.229.0/24205.73.230.0/24205.73.231.0/24