AS721 143.69.104.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048143.69.104.0/24143.69.105.0/24143.69.106.0/24143.69.107.0/24143.69.108.0/24143.69.109.0/24143.69.110.0/24143.69.111.0/24