For instance a whois query on wikipedia.org results in the following:
Domain ID:D51687756-LROR Domain Name:WIKIPEDIA.ORG Created On:13-Jan-2001 00:12:14 UTC Last Updated On:19-Oct-2003 02:52:44 UTC Expiration Date:13-Jan-2005 00:12:14 UTC Sponsoring Registrar:R71-LROR Status:OK Registrant ID:C3819183-RCOM Registrant Name:Jimmy Wales Registrant Organization:Bomis,Inc. Registrant Street1:4455LamontSt.,Suite3 Registrant City:SanDiego Registrant State/Province:CA Registrant Postal Code:92109 Registrant Country:US Registrant Phone:+1.6192739361 Registrant FAX:+1.6192739363 Registrant Email:jwales@bomis.com Admin ID:C11978190-RCOM Admin Name:Jimmy Wales Admin Organization:Bomis,Inc. Admin Street1:3585HancockSt.,SuiteA Admin City:SanDiego Admin State/Province:CA Admin Postal Code:92110 Admin Country:US Admin Phone:+1.6192961732 Admin Email:jwales@bomis.com Tech ID:C1-RCOM Tech Name:Domain Registrar Tech Organization:Register.Com Tech Street1:5758thAvenue Tech City:NewYork Tech State/Province:NY Tech Postal Code:10018 Tech Country:US Tech Phone:+1.9027492701 Tech Email:domain-registrar@register.com Name Server:DNS33.REGISTER.COM Name Server:DNS34.REGISTER.COM