50.16.0.0-50.16.127.255 50.16.0.0/17
50.16.128.0-50.16.191.255 50.16.128.0/18
50.16.192.0-50.16.199.255 50.16.192.0/21
50.16.200.0-50.16.203.255 50.16.200.0/22
50.16.204.0-50.16.205.255 50.16.204.0/23