Hi! Sorry for the late response anon.
Well, first of all, you have to understand that belting isn’t really a part of operatic technique. It’s a land of its own. Belting is a form of extended chest voice, the lowest register of the voice. A chest voice for a female would be from her lowest notes to maybe like F4-A4 ish, depending. Middle voice begins to blend with chest voice around the pitch you speak in, and will go up to your passaggio, where your voice will switch to head voice.
Honestly, I wouldn’t know how to classify someone from just their belt voice, because that doesn’t really define a singer at all. You might be an alto/mezzo soprano with a strong low voice or a soprano who’s belt can’t go high because their voice becomes too operatic at a certain point (like me…)
Belting is great and I think it’s a cool skill to have, but a word of caution: If you plan on singing legit classical musical theatre, or venturing into opera, your belt will hinder you. I still struggle with chest and middle range notes because I belted, and I had to relearn how to approach these areas of my voice.