AS721 143.74.0.0/20 CIDR and IP Range Summary.ASN: 721 - DoD Network Information CenterHost Count: 4094Addressable IPs: 4096143.74.0.0/24143.74.1.0/24143.74.2.0/24143.74.3.0/24143.74.4.0/24143.74.5.0/24143.74.6.0/24143.74.7.0/24143.74.8.0/24143.74.9.0/24143.74.10.0/24143.74.11.0/24143.74.12.0/24143.74.13.0/24143.74.14.0/24143.74.15.0/24