aim.h1.ru has one IP number , but the reverse is entropy.agava.net. gn.h1.ru, sss.h1.ru, ssb.h1.ru, navy.h1.ru, svet.h1.ru and at least 35 other hosts point to the same IP. h1.ru is a domain controlled by two nameservers at holm.ru. They are on different IP networks. Incoming mail for h1.ru is handled by two mailservers on different IP networks. h1.ru has one IP number. aim.h1.ru is hosted on a server in Russian Federation.