Is there such thing as a male Soprano?
There are indeed male soprano. One sings with the Seattle Opera once in a while. He is not a countertenor, he is truly a soprano. I think he is in his late twenties. Your voice may not have changed completely. But if you are a true tenor, you will probably be able to sing higher as you get older. If you are a baritone or bass, your range will get lower. You also might just be singing in falsetto really high. Most guys I know can sing really high in their falsetto, and some of them can sing almost as high as I can.