Summary
ns2.ch-host.ch has one IP number , but the reverse is
ns2.dns.regsol.net.
ns2.ci1.de,
ns2.g-s.ch,
ns2.wmc.de,
dns2.iwt.at,
ns2.wo4.net and at least 100 other hosts point to the same IP.
ch-host.ch,
kelag-ag.ch,
kelag-ut.at,
bontec-ag.ch,
swisskontakt.ch and at least two other hosts use this as a nameserver.
ch-host.ch is delegated to two nameservers, however one extra nameserver is listed in the zone. All nameservers are at
ch-host.ch themselves. Two of them are on the same IP network. Incoming mail for
ch-host.ch is handled by one mailserver also at
ch-host.ch.
ch-host.ch has one IP number.
ns2.ch-host.ch is hosted on a server in Germany even though the hostname implies Switzerland.