54.161.220.0-54.161.223.255 54.161.220.0/22
54.161.224.0-54.161.255.255 54.161.224.0/19
54.163.0.0-54.163.15.255 54.163.0.0/20
54.162.0.0-54.162.255.255 54.162.0.0/16