ns1.dn.net has one IP number , which also has a corresponding reverse pointer. ns.cl-realty.com cnames to this hostname. dn.net, kis.net, now.org, jfri.org, aflat.jp and at least 100 other hosts use this as a nameserver. dn.net is a domain controlled by two nameservers at dn.net themselves. They are on different IP networks. ns1.dn.net is hosted on a server in United States.