My 'What is My ISP?' Tool Keeps Saying I'm a Cloudflare Internet Provider - What's Up?

Hey folks, so we've got this 'What is My ISP?' tool, and it's been having a bit of an identity crisis lately. It keeps telling me, and seemingly a bunch of our users, that our internet provider is Cloudflare, even when we're absolutely not routing through them. This is messing with our basic ISP detection accuracy, so I'm wondering if anyone's encountered something similar or has any brilliant insights into why it might be misidentifying the actual internet provider.