AS721 205.60.176.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048205.60.176.0/24205.60.177.0/24205.60.178.0/24205.60.179.0/24205.60.180.0/24205.60.181.0/24205.60.182.0/24205.60.183.0/24