AS721 205.91.16.0/20 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 4094Addressable IPs: 4096205.91.16.0/24205.91.17.0/24205.91.18.0/24205.91.19.0/24205.91.20.0/24205.91.21.0/24205.91.22.0/24205.91.23.0/24205.91.24.0/24205.91.25.0/24205.91.26.0/24205.91.27.0/24205.91.28.0/24205.91.29.0/24205.91.30.0/24205.91.31.0/24