172.67.100.0-172.67.103.255 172.67.100.0/22
172.67.104.0-172.67.111.255 172.67.104.0/21
172.67.112.0-172.67.127.255 172.67.112.0/20
172.67.128.0-172.67.255.255 172.67.128.0/17