Changing DNS server info.:
http://www.techsupportalert.com/content/how-find-best-dns-server.htm
Android DNS: http://smallbusiness.chron.com/change-dns-android-28423.html
Small list of servers to try:
http://pcsupport.about.com/od/tipstricks/a/free-public-dns-servers.htm
OpenNIC Project will provide you with localized DNS servers that are not configured to track your lookups or keep logs.
OpenNICProject.org
FWIW, DNS is always free since it’s an IP-based system unless your provider is blocking by IP subnets or ranges like the Chinese government.