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Anycast routing directs your queries to the closest Google Public DNS server.

For more information on anycast routing, see the Wikipedia entry.

Some offices have private networks that allow you to access domains that you can't access outside of work.When clients send queries to Google Public DNS, they are routed to the nearest location advertising the anycast address used ().The specific locations advertising these anycast addresses change due to network conditions and traffic load, and include nearly all of the Core data centers and Edge Points of Presence (Po Ps) in the Google Edge Network.It is available to Internet users around the world, though your experience may vary greatly based on your specific location.Google Public DNS should work with most ISPs, assuming you have access to change your network DNS settings. You can use Google as your primary service by just using one of the IP addresses.

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