AS721 143.73.104.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048143.73.104.0/24143.73.105.0/24143.73.106.0/24143.73.107.0/24143.73.108.0/24143.73.109.0/24143.73.110.0/24143.73.111.0/24