oberek.man.lodz.pl has one IP number , which also has a corresponding reverse pointer. dns2.man.lodz.pl point to the same IP. man.lodz.pl is a domain controlled by five nameservers. Two of them are on the same IP network. Incoming mail for man.lodz.pl is handled by two mailservers at man.lodz.pl themselves. They are on different IP networks. oberek.man.lodz.pl is hosted on a server in Poland.