AS721 214.15.240.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048214.15.240.0/24214.15.241.0/24214.15.242.0/24214.15.243.0/24214.15.244.0/24214.15.245.0/24214.15.246.0/24214.15.247.0/24