lucy24 - 4:00 pm on Sep 23, 2013 (gmt 0)
in most cases this will only resolve back to the ISP of the company
Even the free lookup will very often show the exact name attached to your particular /29 sliver. Only the tiniest companies go straight to a commercial ISP. If it's an academic range, it always resolves to the name of the school; there's no other ISP involved. So why wouldn't an analytics program be able to give the same information?
The question is whether they're doing dynamic lookups-- not likely-- or using a database, and then how often their database is updated.