AS721 199.209.232.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048199.209.232.0/24199.209.233.0/24199.209.234.0/24199.209.235.0/24199.209.236.0/24199.209.237.0/24199.209.238.0/24199.209.239.0/24