my.v.pl has one IP number , via cname to home.pl , which also has a corresponding reverse pointer. my.xo.pl, homenet.pl, artbale.pl, home.net.pl, www.home.pl and at least 54 other hosts point to the same IP. v.pl is a domain controlled by three nameservers at home.pl. All of them are on different IP networks. Incoming mail for v.pl is handled by one mailserver at internet.v.pl. v.pl has one IP number. my.v.pl is hosted on a server in Poland.