AS668 198.154.16.0/21 CIDR and IP Range Summary.ASN: 668 - DoD Network Information CenterHost Count: 2046Addressable IPs: 2048198.154.16.0/24198.154.17.0/24198.154.18.0/24198.154.19.0/24198.154.20.0/24198.154.21.0/24198.154.22.0/24198.154.23.0/24