Gooooooooooooooooood morning PILIPINAS!
Have you check this SITE? And does your area appear on the part *Also available in Fiber and VDSL in selected areas?
If your area is not listed over Fiber & VDSL area then it is safe to assume that it would be using ADSL. But since you told us that you need to connect a new line if you push your application, then may be they already expanded Fiber or VDSL lines to your area.