On 16/02/2026 7:47, Abdullah DevRel of IPinfo via NANOG wrote:
Hi Hank,
Large-scale ground truth evaluations require access to data that is typically
only available to enterprises internally. Our NANOG 96 presentation
(https://nanog.org/events/nanog-96/content/5678/) and our peer-reviewed
research (https://dl.acm.org/doi/10.1145/3676869) present what we can share
publicly about our methodology and accuracy. We would welcome an independent
academic benchmark if one were to emerge.
I recently came across:
https://ipapi.is/blog/ip-geolocation-accuracy.html
which analyzed 10 geolocation DBs for accuracy based on ground-truth.
I assume it is biased and many here will point out the holes in their
analysis.
Nonetheless, it would be nice that some neutral Internet measurement
organization (of which there are a few) would take up this effort on a
yearly basis.
Regards,
Hank
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