18.245.27.0-18.245.27.255 18.245.27.0/24
18.245.28.0-18.245.31.255 18.245.28.0/22
18.245.32.0-18.245.63.255 18.245.32.0/19
18.245.64.0-18.245.79.255 18.245.64.0/20