52.22.0.0-52.22.127.255 52.22.0.0/17
52.22.128.0-52.22.159.255 52.22.128.0/19
52.22.160.0-52.22.167.255 52.22.160.0/21
52.22.168.0-52.22.171.255 52.22.168.0/22
52.20.0.0-52.21.255.255 52.20.0.0/15