What is the whois server for .bg?
By default, whois server for .bg TLD is whois.register.bg. This can be used to fetch the .bg domain/website whois information. Extension .bg sponsoring organisation is Register.BG and its registered on 03-01-1995.
Sponsoring Organisation Details
Register.BG.
40, Slivnitsa blvd.
Varna 9000.
Bulgaria.
Usage
whois -h <whois server> <domain name>
For example
whois -h whois.register.bg hiox.bg