IPLocals
A Single Function SiteDescription:
IPLocals is a free reverse IP tool that will allow you to check what sites are hosted on your server/hosting package. This is particularly useful with shared hosting where you can discover if your hosting is oversold.
The use of the service is straight forward, enter the website address in the search box, hit "Go", and you will be presented with a list of all the sites hosted with your shared hosting account. Clicking on any of the sites in the list, displays a live view of the site.