About the Service:

It's Advanced WHOIS service displays several additional details about a domain name or an IP Address apart from standard contact information.

Key Features:

• Web Hosting Company hosting the domain name
• Current IP Address of the domain
• Geographical location of the IP Address
• Reverse IP Facility - Lists all domains hosted on an IP Address
• Domain Owner Details - Registrant, Admin Contact etc
• Absolutely Free!

http://whois.domaintools.com/