It can be helpful to know details of IP addresses especially if you run a blog/website and see spamming from specific IP addresses.
Here is how to quickly find out online where the IP address is located, the specific internet provider for that IP and a cool Google map view that roughly shows the physical location of the IP:
1. Go to www.ipfingerprints.com
2. Enter the IP address whose details are needed and click “Discover”. This will give the required information about the specific IP address namely originating country, state, city, zip code and ISP.
Pretty useful tool.