I suppose it could vary depending on the ISP, but this information is frequently referenced during investigations both internal to the ISP and by law enforcement agencies. I can't say for sure, but I suspect that the answer is "indefinitely." So, yes, they can still track you down.
Dig Deeper on Windows Operating System Management
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.