sardunya.tr.net has one IP number , which also has a corresponding reverse pointer. ns1.tr.net, ns1.tr.net.tr, ns01.tr-net.net.tr and sardunya.trnet.com point to the same IP. tr.net is a domain controlled by two nameservers at tr.net.tr. They are on the same IP network. Incoming mail for tr.net is handled by one mailserver having a total of three IP numbers. All of them are on the same IP network. tr.net has one IP number. sardunya.tr.net is hosted on a server in Turkey.