It is not really fingerprinting but I realized that ipinfo can place my IP on my house. I guess some stupid phone sent the GPS location. Isn't that supposedly under GDPR in Europe? Can I delete it somehow?
I work for IPinfo. If you're on a residential connection, the geolocation of that IP address is likely to be accurate up to the ZIP code area. We have generalized hints of location information from over 70 different sources. Then we aggregate them and we map this information based on population density in the geographic region. Sure, our data is becoming more granular, but it's not granular enough to detect individual houses from residential connections.
However, our data is improving for POI (Points of Interest). For example, with data centers, we're working on identifying the exact data center from IP addresses. Similar accuracy applies to airports, hotels, and conference halls, as they tend to have a large concentration of IP addresses in a very small area.
That is surprising. I am not sure what is going on. This type of accuracy can only work if you are operating like a literal data center. Even in that case, I think meter level accuracy will involve hosting one of our ProbeNet PoPs.
For example, we know where our ProbeNet PoPs are located. If hops to your ranges are through private IPs or sub 1 MS RTT, we can pretty much confidently tell the name of the data center. However, considering that there are data centers that span thousands of square meters, we can point to the data center building, rather than the rack or the room.
