AS721 143.141.120.0/21 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048143.141.120.0/24143.141.121.0/24143.141.122.0/24143.141.123.0/24143.141.124.0/24143.141.125.0/24143.141.126.0/24143.141.127.0/24