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
61.in-addr.arpa.
These servers manage the 61.in-addr.arpa zone
all servers delegate to
215.61.in-addr.arpa.
These servers manage the 215.61.in-addr.arpa zone
all servers delegate to
192.215.61.in-addr.arpa.
These servers manage the 192.215.61.in-addr.arpa zone