AS721 205.66.208.0/20 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 4094Addressable IPs: 4096205.66.208.0/24205.66.209.0/24205.66.210.0/24205.66.211.0/24205.66.212.0/24205.66.213.0/24205.66.214.0/24205.66.215.0/24205.66.216.0/24205.66.217.0/24205.66.218.0/24205.66.219.0/24205.66.220.0/24205.66.221.0/24205.66.222.0/24205.66.223.0/24