104.20.16.0-104.20.31.255 104.20.16.0/20
104.20.32.0-104.20.63.255 104.20.32.0/19
104.20.64.0-104.20.127.255 104.20.64.0/18
104.20.128.0-104.20.255.255 104.20.128.0/17
104.21.0.0-104.21.255.255 104.21.0.0/16
104.22.0.0-104.23.255.255 104.22.0.0/15
104.24.0.0-104.31.255.255 104.24.0.0/13