xxx7.my1.ru has one IP number , but the reverse is s26.ucoz.net. 90-x.ru, 1oli.ru, lmobi.ru, anapa.us, akuno.ru and at least 100 other hosts point to the same IP. my1.ru is a domain controlled by two nameservers at ucoz.ru. They are on different IP networks. Incoming mail for my1.ru is handled by two mailservers on different IP networks. my1.ru has one IP number. xxx7.my1.ru is hosted on a server in United Kingdom even though the hostname implies Russian Federation.