Get world bounds/See if colliding with world border

I need one of these for an “infinite world” system, where players get automatically teleported to the other border of the world when they get close to the border. Calling AABB/OOB functions on game.GetWorld() only returned zero vectors and using util.IsInWorld or util.PointContents in PhysicsCollide (using HitPos + HitNormal * 100) didn’t return any useful results either.

The “borders” are 16384 units in each direction from the origin.