Whois is a facility used primarily for determining the availability of domain names. If the domain name you submit returns domain registration information, that means your requested domain name is currently registered.

• To look for a domain name, just enter the domain name, for example: "mentasm.com"
• To look for a handle, enter, for example: "handle WA3509"
• To look for a nameserver IP, enter, for example: "host 216.37.172.1"
• To look for a name, enter: "name lastname, firstname" or "name The Sample Corporation"
• To look for a network, enter the network IP or the NETBLK name, for example: "216.37.172.0"