Root zone
These servers manage the DNS root zone
in-addr.arpa.
These servers manage the in-addr.arpa zone
210.in-addr.arpa.
These servers manage the 210.in-addr.arpa zone
197.210.in-addr.arpa.
These servers manage the 197.210.in-addr.arpa zone
108.197.210.in-addr.arpa.
These servers manage the 108.197.210.in-addr.arpa zone
192.108.197.210.in-addr.arpa.
These servers manage the 192.108.197.210.in-addr.arpa zone