[Idea] Number Complete
 

Well, I had this idea... most of us don't save every number we dial and sometimes we have to call a customer support line is another state and it just so happens you remember the area code. So I was typing in an area code of a place I have only called a handful of times and I thought to myself, "Wouldn't it be great if my phone put this number in a dictionary and would help me auto complete it?"

I know the phone app is closed sourced but I am betting there is a way to make this happen.