ns2.zone.ee has one IP number , which also has a corresponding reverse pointer. www.merkoehitus.ee and waffle.1kdigital.com point to the same IP. 1k.ee, we.ee, big.ee, all.ee, itk.ee and at least 100 other hosts use this as a nameserver. zone.ee is a domain controlled by three nameservers. All of them are on different IP networks. Incoming mail for zone.ee is handled by two mailservers at zone.ee themselves. They are on different IP networks. zone.ee has one IP number. ns2.zone.ee is hosted on a server in Estonia.