User blog comment:KidVegeta/KidVegeta's reviews/@comment-1954732-20101102163117/@comment-1821137-20101103125750

Cell is stated to be an android 21. You can't know is he created before or after, actually it was never mentioned. Also, DR Geroo would give the name to the Cell when he is finished. BTW, you can see that Trunks and Krillin destroyed Dr. Geroo's labolatory and Cell (Who wasn't finished) with it.

Also, the Cell in the Androids Saga is from another timeline, you need to count that in.