Can you tell me what is my voice type?

My voice range is actually about E2 - E5 and my voice sounds very
light. Also I don't have falsetto and head voice, all those notes in
my range I sing in full chest voice. I have two brothers and our voice
lightness are the same (they are younger than me, 8 and 12 year old).
I don't understand.

P.S. I am 14:D and my voice never broke, I never squeak or smth. I
just lost my high notes, which I had when I was treble (E3 - E6 when I
was 11 year old). :p