AS721 55.50.224.0/20 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 4094Addressable IPs: 409655.50.224.0/2455.50.225.0/2455.50.226.0/2455.50.227.0/2455.50.228.0/2455.50.229.0/2455.50.230.0/2455.50.231.0/2455.50.232.0/2455.50.233.0/2455.50.234.0/2455.50.235.0/2455.50.236.0/2455.50.237.0/2455.50.238.0/2455.50.239.0/24