AS721 55.179.16.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 204855.179.16.0/2455.179.17.0/2455.179.18.0/2455.179.19.0/2455.179.20.0/2455.179.21.0/2455.179.22.0/2455.179.23.0/24