AS39 131.76.136.0/21 CIDR and IP Range Summary.ASN: 39 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048131.76.136.0/24131.76.137.0/24131.76.138.0/24131.76.139.0/24131.76.140.0/24131.76.141.0/24131.76.142.0/24131.76.143.0/24