"Current" means that all numbers can get an interview. Your case number does not need to be below a certain threshold, as there is none provided.
But that's theory.
It would then depend on when you sent your package back to KCC : it would be a "first in, first served " basis, as consulars could not interview everyone in the same month.
For the previous DVs ( the early ones ), some regions were "current" from the beginning. Now, it's more like some regions like OC which get it for maybe the last month of interviews.