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
109.in-addr.arpa.
These servers manage the 109.in-addr.arpa zone
all servers delegate to
123.73.109.in-addr.arpa.
These servers manage the 123.73.109.in-addr.arpa zone
all servers delegate to
0-63.123.73.109.in-addr.arpa.
These servers manage the 0-63.123.73.109.in-addr.arpa zone