Didn't see this posted in here yet so lets get the ball rollin'
They support IPv4 and IPv6. Also touted as being more secure, won't sell out users and faster. We'll see as it grows but I think it would be another great option to have listed along with the others.
For IPv4: 1.1.1.1 and 1.0.0.1
For IPv6: 2606:4700:4700::1111 and 2606:4700:4700::1001