Can stored IP addresses be used for accurate geolocation after they get reassigned?

If get the geolocation for an IP address that was stored in a database a year ago, the IP address may have been reassigned since it was stored, so that its current location is not the same as it was at that time. I am wondering if this new location is generally likely to be in the vicinity of the original location (eg, say a change from Ft. Lauderdale to Miami) or whether on the开发者_JAVA技巧 contrary it might get reassigned somewhere entirely different (eg Detroit).

"people all the time pay for "cancer" treatments that don't work. The vendor gets away with it because the patient dies before he can sue...you need geolocation, so you pay for it - even though it's inherently unreliable. – John Saunders Mar 18 '11 at 1:40"

Correct. And its MUCH worse than that. Deliberate mis-geolocation along with criminal interference to public databases IS being used to electronically hide people. Accurate and meaningful Geolocation is evidently as likely as being paid a Euromillions Jackpot if youre not someone who is engaged in organised crime.