go
se-dns.kthnoc.net has one IP number , which also has a corresponding reverse pointer. f.ns.se point to the same IP. kthnoc.net is delegated to two nameservers, however one extra nameserver is listed in the zone. All of them are on different IP networks. Incoming mail for kthnoc.net is handled by one mailserver at kthnoc.net themselves. se-dns.kthnoc.net is hosted on a server in Sweden.

se-dns.kthnoc.net
a records
 
+ 192.71.53.53 192.71.53.0/24 AS8674 f.ns.se
+ --- f.ns.se
+ --- -

kthnoc.net
ns-soa records
ns1.kthnoc.net
+ 192.36.250.53 192.36.250.0/24 AS3224 -
+ --- -
ns records
sunic.sunet.se
+ 192.36.125.2 192.36.125.0/24 AS1653 -
+ --- -
server.nordu.net
+ 193.10.252.19 193.10.252.0/24 AS2603 -
ns1.kthnoc.net
+ 192.36.250.53 192.36.250.0/24 AS3224 -
mx records
mx1.kthnoc.net
+ 192.36.250.53 192.36.250.0/24 AS3224 ns1.kthnoc.net
+ --- ns1.kthnoc.net
ip numbers of host
192.71.53.53
ptrs of ip numbers
f.ns.se
se-dns.kthnoc.net
ip numbers using ptr to this host
192.36.250.54
192.71.53.53
hostnames sharing ip with a-records
f.ns.se
domains using this as nameserver under another name
se
nameservers missing in parent delegation
ns1.kthnoc.net