[b] Guitar-Online — Lookup IP address
How can the Lookup IP Address help me?
If you know the IP address (e.g. 126.96.36.199) of your user you can look it up! You can also use the wild card symbol (e.g. 203.89.25.*) to search for a range of IP addresses. This will help you find important users you already know about to learn more about how they use your website.