8.8.8.8 8.8.4.4
OpenNIC
106.186.17.181 106.185.41.36
199.85.126.10 199.85.127.10
OpenDNS
208.67.222.123 208.67.220.123
Level 3 Communications
209.244.0.3 209.244.0.4
Comodo Secure DNS
8.26.56.26 8.20.247.20
DNS Advantage
156.154.70.1 156.154.71.1