True, an IP alone doesn't really prove anything and doesn't mean it is a 100% fraudulent join. However, that particular IP is flagged as Corporate (Company, Fixed location, Static, Not Shared) and acting as an open proxy that can be logged into from anywhere on the planet. Not many sensible businesses run open proxies with worldwide access and appear on CBL. I would certainly keep an eye on that join/customer if it was my site.
