50.17.21.0-50.17.21.255 50.17.21.0/24
50.17.22.0-50.17.23.255 50.17.22.0/23
50.17.24.0-50.17.31.255 50.17.24.0/21
50.17.32.0-50.17.39.255 50.17.32.0/21
50.17.40.0-50.17.41.255 50.17.40.0/23