Root zone
These servers manage the DNS root zone
all servers delegate to
in-addr.arpa.
These servers manage the in-addr.arpa zone
all servers delegate to
2.in-addr.arpa.
These servers manage the 2.in-addr.arpa zone
all servers delegate to
207.2.in-addr.arpa.
These servers manage the 207.2.in-addr.arpa zone