Yeah, if Annnie summons tibbers and walks him as far away as he can go he's like 2000 units away from annie and if he autoattacks it's basically the same thing as annie attacking so annie has the longest attack range
As their effects are part of similar pet logic, you could apply the same logic for Yorick or Mordekaiser for even longer range.
"Outside of Tristana passive, longest autoattack range in the game"