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
91.in-addr.arpa.
These servers manage the 91.in-addr.arpa zone
all servers delegate to
196.220.91.in-addr.arpa.
These servers manage the 196.220.91.in-addr.arpa zone