www03.ns1.de has one IP number , which is the same as for ns1.de. www03.ns1.de also has a corresponding reverse pointer. ns1.de, meet.de, hofi.de, top99.de, imafo.com and at least 82 other hosts point to the same IP. ns1.de is a domain controlled by two nameservers at ns1.de themselves. They are on different IP networks. Incoming mail for ns1.de is handled by one mailserver at de. www03.ns1.de is hosted on a server in Germany.