How do I determine the physical location of an IP address?
There are several online services that will display your IP address and the associated city, state, or country with that IP address or any other IP address entered into the site. Often this information is associated with where the ISP is located and not the exact location of the person of that IP address.
I want to find the exact physical address of an IP.
There is no method of associating an exact physical geographical address or the person associated with an IP address that an end-user can do. If you'd like to report abuse by a person behind an IP address contact local authorities or the ISP who's in control of that IP address.
Keep in mind that an IP address could be spoofed, stolen, or behind a proxy and using its IP address. If behind a proxy, you may also be able to report abuse to the proxy service and they may be able to track down the real IP address.