AS721 214.4.168.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048214.4.168.0/24214.4.169.0/24214.4.170.0/24214.4.171.0/24214.4.172.0/24214.4.173.0/24214.4.174.0/24214.4.175.0/24