138.246.0.0-138.246.127.255
138.246.0.0/17
138.246.128.0-138.246.191.255
138.246.128.0/18
138.246.192.0-138.246.223.255
138.246.192.0/19
138.246.224.0-138.246.239.255
138.246.224.0/20
138.246.240.0-138.246.247.255
138.246.240.0/21
138.246.248.0-138.246.251.255
138.246.248.0/22
138.246.252.0-138.246.252.255
138.246.252.0/24