117.50.96.0-117.50.111.255 117.50.96.0/20
117.50.112.0-117.50.119.255 117.50.112.0/21
117.50.120.0-117.50.121.255 117.50.120.0/23
117.50.122.0-117.50.122.255 117.50.122.0/24