IP tracking now, is the same as reading grains of sand.
Could be from anywhere, at any point in time, at any place.
They're of no significance.
It's the same as someone saying: "I'm from Japan" but their IP is, for example, Alaska.
Not much you can do about it or with it, but not much you can't either.
What I do enjoy is shared IP's and then, you have to be really absolute.