I have found active-domain in the FreeBSD vendors page, it's based in Singapore. It seems interesting to me, do you have some experience with this registrar?
Active-Domain.com has been providing domain name registration service since 2001. We are utilizing FreeBSD exclusively on all our mail, web and DNS servers. The stability and security of FreeBSD has enabled us to provide consistently DNS service for over hundred thousand domain names. We fully recommend and support the development of FreeBSD.