Board Thread:Support Requests - Getting Started/@comment-28439459-20160512035455/@comment-8-20160512222413

You can use Special:Contact to ask staff to remove the IP from the history, but there really is no need. The IP gives very little information (a very general idea of your location and the name of your ISP), and it's likely that you will have a different IP to that already... or at least, as soon as you reconnect to your service. I recommend just forgetting about it :)