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
193.in-addr.arpa.
These servers manage the 193.in-addr.arpa zone
all servers delegate to
171.193.in-addr.arpa.
These servers manage the 171.193.in-addr.arpa zone
all servers delegate to
120.171.193.in-addr.arpa.
These servers manage the 120.171.193.in-addr.arpa zone