go
r.dns.it has one IP number , but the reverse is nsit.garr.net. nsit.garr.net point to the same IP. it, nic.it, g8university.com and g8universitystudent.com use this as a nameserver. dns.it is a domain controlled by four nameservers. Two of them are on the same IP network. Incoming mail for dns.it is handled by one mailserver at nic.it. r.dns.it is hosted on a server in Italy.

r.dns.it
a records
 
+ 193.206.141.46 193.206.0.0/16 AS137 nsit.garr.net
+ --- nsit.garr.net

dns.it
ns-soa records
dns.nic.it
+ 192.12.192.5 192.12.192.0/24 AS2597 -
+ --- -
ns records
dns.nic.it
+ 192.12.192.5 192.12.192.0/24 AS2597 -
+ --- -
m.dns.it
+ 217.29.76.4 217.29.72.0/21 AS16004 -
c.dns.it
+ 194.0.1.22 194.0.1.0/24 AS42909 -
ns2.nic.it
+ 192.12.192.3 192.12.192.0/24 AS2597 -
mx records
relay.nic.it
+ 193.205.245.244 193.205.245.0/24 AS5602 mail.nic.it
+ --- mail.nic.it
ip numbers of host
193.206.141.46
ptrs of ip numbers
nsit.garr.net
hostnames sharing ip with a-records
nsit.garr.net
domains using this as nameserver
g8university.com
g8universitystudent.com
it
nic.it
used as nameserver but missing in parent delegation
g8university.com
g8universitystudent.com