isp.cm.nu is a domain controlled by two nameservers at
fastpark.net. They are on different IP networks.
isp.cm.nu has one IP number , but the reverse is
ptr-216-8-179-23.ptr.nextdimensioninc.com.
www.presort.info and
ns1.opleidenindeschool.nl point to the same IP and also shares nameservers.
sje.us,
minf.de,
ssmi.de,
fuet.de,
bwia.de and at least 100 other hosts point to the same IP.
tls.se,
i3f.fr,
fey.se,
tce.se,
iome.nl and at least 53 other hosts share nameservers with this domain.
cm.nu is delegated to two nameservers, however both delegated nameservers are missing in the zone. All nameservers are also at
fastpark.net. They are on different IP networks.
isp.cm.nu is hosted on a server in Canada even though the hostname implies Niue.