Dyn

https://help.dyn.com/internet-guide-setup/

IPv4 DNS Server:

216.146.35.35

216.146.36.36

Dyn is the next best free third-party DNS server in the list. It provides amazing web experiences and protects your information from most phishing attacks. Set up your network settings with the below DNS IP addresses to use Dyn DNS server. See more in the Dyn Internet Guide Setup.