ns3.euro909.com has one IP number , which also has a corresponding reverse pointer. dns.primaerdata.no point to the same IP. gn.dk, rd.dk, 4a.se, pod.dk, pvf.se and at least 100 other hosts use this as a nameserver. euro909.com is a domain controlled by two nameservers at euro909.com themselves. They are on different IP networks. Incoming mail for euro909.com is handled by four mailservers. All of them are on the same IP network. euro909.com has one IP number. ns3.euro909.com is hosted on a server in Sweden.