AS721 215.65.88.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048215.65.88.0/24215.65.89.0/24215.65.90.0/24215.65.91.0/24215.65.92.0/24215.65.93.0/24215.65.94.0/24215.65.95.0/24