117.1.220.0-117.1.220.1 117.1.220.0/31
117.1.0.0-117.1.127.255 117.1.0.0/17
117.1.128.0-117.1.191.255 117.1.128.0/18
117.1.192.0-117.1.207.255 117.1.192.0/20
117.1.208.0-117.1.215.255 117.1.208.0/21
117.1.216.0-117.1.219.255 117.1.216.0/22
117.0.0.0-117.0.255.255 117.0.0.0/16