ns4.fr.clara.net has one IP number , which also has a corresponding reverse pointer. cita.fr, azco.fr, actj.com, buzux.fr, aigon.fr and at least 100 other hosts use this as a nameserver. fr.clara.net is a domain controlled by two nameservers at fr.clara.net themselves. They are on different IP networks. Incoming mail for fr.clara.net is handled by three mailservers also at fr.clara.net having a total of four IP numbers. Some of them are on the same IP network. ns4.fr.clara.net is hosted on a server in United Kingdom.