[citation][nom]bison88[/nom]You're completely missing the point. As the article and Judge mentioned, of course it technically "could" identify a state or even city/region, but the margin for error is high for that being false or inaccurate. If you understand how IP addressing works then you know that it's dependent on how the company buy/renting IP's from an RIR allocates IP's throughout there systems. If they have enough IP's and the Network Admins took the time, they can regionally assign them based off a pre-set subnet to make troubleshooting and assignment easier.With IP addresses finally getting used up the ranges can be all over the place especially for users who have dynamic IP's. There is more too it than that, but in general geolocation IP tools work only as well as the network addressing the IP addresses wants to make it work. It isn't something magically permanent and identifable like a house address, a zip code at the very best. IPv6 that may change, but as it stands now the judge made the right decision for all intents and purposes.[/citation]
Sure you can use a non RFC1918 address as a private net and use it anywhere in the world and then translate out to the web but in terms of being publicly routable, that is a no go. We are talking about Internet routable addressing here.
As far as the margin of error argument, I can understand your point due to the possibility of proxies being used in some cases.