AS721 206.39.176.0/20 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 4094Addressable IPs: 4096206.39.176.0/24206.39.177.0/24206.39.178.0/24206.39.179.0/24206.39.180.0/24206.39.181.0/24206.39.182.0/24206.39.183.0/24206.39.184.0/24206.39.185.0/24206.39.186.0/24206.39.187.0/24206.39.188.0/24206.39.189.0/24206.39.190.0/24206.39.191.0/24