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
172.210.in-addr.arpa.
These servers manage the 172.210.in-addr.arpa zone
237.172.210.in-addr.arpa.
These servers manage the 237.172.210.in-addr.arpa zone
096nikon.237.172.210.in-addr.arpa.
These servers manage the 096nikon.237.172.210.in-addr.arpa zone