fine.us.to has one IP number. benz.la, mumun.la, phunu.com, gusdur.la, helel.net and at least 100 other hosts point to the same IP. us.to is a domain controlled by four nameservers at afraid.org. All of them are on different IP networks. Incoming mail for us.to is handled by one mailserver at us.to themselves. us.to has one IP number.