ns1.msft.net has one IP number , which also has a corresponding reverse pointer. msn.de, msn.ca, msn.com, iis.net, live.cl and at least 100 other hosts use this as a nameserver. msft.net is a domain controlled by five nameservers at msft.net themselves. All of them are on different IP networks. ns1.msft.net is hosted on a server in United States.