AS5972 139.39.40.0/21 CIDR and IP Range Summary.ASN: 5972 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048139.39.40.0/24139.39.41.0/24139.39.42.0/24139.39.43.0/24139.39.44.0/24139.39.45.0/24139.39.46.0/24139.39.47.0/24