Summary
ns3.atos.net has one IP number , which also has a corresponding reverse pointer.
aex.nl,
fft.fr,
muze.fr,
atos.fr,
inca.fr and at least 100 other hosts use this as a nameserver.
atos.net is a domain controlled by two nameservers at
atos.net themselves. They are on different IP networks. Incoming mail for
atos.net is handled by two mailservers on the same IP network.
ns3.atos.net is hosted on a server in France.