Re: Geofeeds are adversarial — was Re: Geofeeds are good

[Hank Nussbacher via NANOG <nanog () lists nanog org>]

On 15/02/2026 20:07, Tony Patti via NANOG wrote:
> I compared IPinfo’s answers to MaxMind’s https://www.maxmind.com/en/geoip-demo answers,
> for a random recent visitor from 44.198.66.156 to my website https://cryptosystemsjournal.com/
> and one notable difference is that you specify a larger CIDR block of 44.192.0.0/11 (2,097,152 addresses)
> whereas MaxMind specifies a much smaller CIDR block 44.198.64.0/19 (8,192 addresses).
>
> Tony Patti

Unfortunately, there is not a quality academic paper that has come out 
yearly comparing the various geo-location DBs and their accuracy (IPv4 & 
IPv6) down to the 100m-1km level.  So in the interim, we will continue 
to see geo-location DB wars - just like we have had OS wars and IP vs 
OSI wars.


Regards,

Hank

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