WHOIS records lookup

You can use websites like http://whois-search.com or http://networksolutions.com. You can also run "whois" command from a telnet command line like this:

whois yourdomain.com

If you want to look in whois record directly on the whois server at your registrar, you can use -h option to specify the whois server.

For example:

whois -h whois.opensrs.net dreamhost.com

Here's a list of whois servers you may need to use for checking record for various TLDs(Top Level Domains):