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
160.210.in-addr.arpa.
These servers manage the 160.210.in-addr.arpa zone
57.160.210.in-addr.arpa.
These servers manage the 57.160.210.in-addr.arpa zone
128.57.160.210.in-addr.arpa.
These servers manage the 128.57.160.210.in-addr.arpa zone