iptables -A INPUT -s 216.220.80.0/20 -j DROP
iptables -A INPUT -s 69.172.128.0/20 -j DROP
iptables -A INPUT -s 204.17.136.0/23 -j DROP
iptables -A INPUT -s 192.156.205.0/24 -j DROP
iptables -A INPUT -s 63.133.224.0/20 -j DROP
iptables -A INPUT -s 68.234.48.0/20 -j DROP
ip6tables -A INPUT -s 2607:f8d8::/32 -j DROP
iptables -A INPUT -s 209.102.224.0/20 -j DROP
iptables -A INPUT -s 204.17.134.0/23 -j DROP