poczta.skww.pl has one IP number , but the reverse is dlf002.delfnet.com.pl. ltm.pl, isti.pl, mnki.pl, fajki.eu, cireo.pl and at least 100 other hosts point to the same IP. skww.pl is a domain controlled by two nameservers having a total of seven IP numbers. Some of them are on the same IP network. skww.pl has one IP number. poczta.skww.pl is hosted on a server in Netherlands even though the hostname implies Poland.