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
163.210.in-addr.arpa.
These servers manage the 163.210.in-addr.arpa zone
30.163.210.in-addr.arpa.
These servers manage the 30.163.210.in-addr.arpa zone
192.30.163.210.in-addr.arpa.
These servers manage the 192.30.163.210.in-addr.arpa zone