go
ns.v6.berkeley.edu has one IP number , which also has a corresponding reverse pointer. berkeley.edu and v6.berkeley.edu use this as a nameserver. v6.berkeley.edu is a domain controlled by three nameservers. All of them are on the same IP network. v6.berkeley.edu has one IP number. ns.v6.berkeley.edu is hosted on a server in United States.

ns.v6.berkeley.edu
a records
 
+ 128.32.136.6 128.32.0.0/16 AS25 -
+ --- -

v6.berkeley.edu
a records
 
+ 128.32.206.65 128.32.0.0/16 AS25  
+ ---  
ns-soa records
v6.berkeley.edu
+ 128.32.206.65 128.32.0.0/16 AS25  
+ ---  
ns records
adns1.berkeley.edu
+ 128.32.136.3 128.32.0.0/16 AS25 -
+ --- -
adns2.berkeley.edu
+ 128.32.136.14 128.32.0.0/16 AS25 -
ns.v6.berkeley.edu
+ 128.32.136.6 128.32.0.0/16 AS25 -
ip numbers of host
128.32.136.6
ptrs of ip numbers
ns.v6.berkeley.edu
ip numbers using ptr to this host
128.32.136.6
domains using this as nameserver
berkeley.edu
v6.berkeley.edu
nameservers missing in parent delegation
sns-pb.isc.org