score:9
Try this page; https://www.iflya380.com/content/A380_love/a380-destinations.html
It is supposed to show destinations served by each airline that flies the A380. Not sure how up-to-date it is.
Most everything flown by an A380 is long haul, any short haul is likely temporary, simply to break in a new aircraft or give crew a little training before going long haul (though crew training reason is usually only for the first couple of aircraft of a type for that airline, not every new aircraft).
Upvote:8
Every A380 route ever flown appears to be on http://a380flights.net/ and DXB is the shortest regularly scheduled flight on that site. The odd shorter flight such as FRA-LHR and FRA-PMI have happened in the past.
There doesn't appear to be any short fifth-freedom A380 flights from FRA, unlike, say FRA-MAD on a 787 on LA.