Scene name from additive async?

Hi there, Im constructing a map from little parts, so I have this script

 using System.Collections;
 
 public class HelloLoadedLevel : MonoBehaviour {
     void Start () {
         Debug.Log (Application.loadedLevelName);
     }
 }

And have 3 parts: part1, part2, part3 each of them has an attached HelloLoadedLevel.

If I run each of them as a scene, they report their respective name, but when I have a main_scene with:

     Application.LoadLevelAdditiveAsync ("part2");
     Application.LoadLevelAdditiveAsync ("part3");[/code]

they report 3 times main_scene, so yeah, it report the "current scene" but how I will print each name part?

yeah I can go and put a string variable inside HelloLoadedLevel and inside each map modify the string with the name of the scene... but that will defeat the dynamism from my POV... so, there is a way to recover the scene name (know if the Application.loadedLevelName is set from the current loaded scene or via an additive add?), or I should go with add a string variable with the name of the scene?

Also I will add, how to keep track of what parts of the map are loaded dynamically? you have any "strategy"? or a dynamic approach?