AS749 143.68.0.0/21 CIDR and IP Range Summary.ASN: 749 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048143.68.0.0/24143.68.1.0/24143.68.2.0/24143.68.3.0/24143.68.4.0/24143.68.5.0/24143.68.6.0/24143.68.7.0/24