While in a game doing whatever any ways some time into the game somebody asked me a question that even I find truly stupid even though truly its not a bad question. "How Much Range Does Orb of Range Give?" -Ralph_Wiggum (no joke his in game name) Why is this question stupid exactly what does it have to do with any in game strategy? Anyway's my answer to him was "Against ground units absolutely none, against range I think its 600" Don't worry amongst many other stupid shit he was saying was "Puppies Eat Apples To Save The Ozone Layer" and "I Taste Purple" His Ally asked him for money in all chat and He said "My Pockets Hurt" Simpson nerds play cha I guess.
So how much range does it give against flying? My educated guess tells me its 600 or close to 600.