go
x.dns.be and ns10.communitydns.net point to 194.0.1.10.

ns10.communitydns.net
a records
 
+ 194.0.1.10 194.0.1.0/24 AS42909 x.dns.be
+ --- x.dns.be

x.dns.be
a records
 
+ 194.0.1.10 194.0.1.0/24 AS42909 -
+ --- -
ip numbers of host
194.0.1.10
ptrs of ip numbers
x.dns.be
hostnames sharing ip with a-records
ns10.communitydns.net
x.dns.be
domains using this as nameserver
be
dns.be