ns.metro.info has one IP number , which also has a corresponding reverse pointer. srv1-metro.ma and ns2.gourmedis.com point to the same IP. mre.de, mgi.pl, mgi.de, mgr.de, mgi.ro and at least 100 other hosts use this as a nameserver. metro.info is a domain controlled by three nameservers. All of them are on different IP networks. Incoming mail for metro.info is handled by one mailserver at mgi.de. ns.metro.info is hosted on a server in Germany.