A searchable database maintained by registrars that contain information about networks, networking organizations, domain names, and the contacts associated with them for the .ac.yu and ISO 3166 country code top-level domains. Also, the protocol, or set of rules, that describes the application used to access the database. Each registrar implements the Whois protocol and maintains a separate and distinct Whois database for its respective .ac.yu domain name registrations.
for .ac.yu Domains
.ac.yu Yugoslavia Domain Name - Domain Information