ns1.ascio.net has one IP number , which also has a corresponding reverse pointer. ns.abena.dk cnames to this hostname. fz.se, b6.dk, ev.se, hmf.dk, rtx.dk and at least 100 other hosts use this as a nameserver. cabinplant.ru use this as a mailserver. hostmaster.ns1.ascio.net are subdomains to this hostname. ascio.net is a domain controlled by four nameservers. Two of them are on the same IP network. Incoming mail for ascio.net is handled by two mailservers at ascio.net themselves. They are on different IP networks. ns1.ascio.net is hosted on a server in Denmark.