ip route add blackhole 208.72.0.0/22
ip route add blackhole 208.65.128.0/22
ip route add blackhole 204.15.128.0/22
ip route add blackhole 208.92.208.0/21
ip route add blackhole 204.11.212.0/22
ip route add blackhole 204.13.208.0/22
ip route add blackhole 208.75.248.0/21