AS721 198.220.88.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048198.220.88.0/24198.220.89.0/24198.220.90.0/24198.220.91.0/24198.220.92.0/24198.220.93.0/24198.220.94.0/24198.220.95.0/24