The WHOIS service offered by Arnes, .si Registry, is provided for information purposes only. It allows to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names. Web interface is implemented via DAS service. If you want additional information, you have to type a unique code and accept rules for usage of data obtained via WHOIS.
Command line WHOIS: whois.arnes.si, port 43.