Root zone
These servers manage the DNS root zone
in-addr.arpa.
These servers manage the in-addr.arpa zone
193.in-addr.arpa.
These servers manage the 193.in-addr.arpa zone
174.193.in-addr.arpa.
These servers manage the 174.193.in-addr.arpa zone
128-255.157.174.193.IN-ADDR.ARPA.
These servers manage the 128-255.157.174.193.IN-ADDR.ARPA zone
These servers claim authority over 128-255.157.174.193.in-addr.arpa
157.174.193.IN-ADDR.ARPA.
These servers manage the 157.174.193.IN-ADDR.ARPA zone
128-255.157.174.193.IN-ADDR.ARPA.
These servers manage the 128-255.157.174.193.IN-ADDR.ARPA zone