Root zone
These servers manage the DNS root zone
all servers delegate to
in-addr.arpa.
These servers manage the in-addr.arpa zone
all servers delegate to
209.in-addr.arpa.
These servers manage the 209.in-addr.arpa zone
all servers delegate to
158.137.209.in-addr.arpa.
These servers manage the 158.137.209.in-addr.arpa zone
all servers delegate to
128-255.158.137.209.in-addr.arpa.
These servers manage the 128-255.158.137.209.in-addr.arpa zone