AS637 158.240.160.0/21 CIDR and IP Range Summary.ASN: 637 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048158.240.160.0/24158.240.161.0/24158.240.162.0/24158.240.163.0/24158.240.164.0/24158.240.165.0/24158.240.166.0/24158.240.167.0/24