You can get the same number on new plates if the paint is peeling on the old plates. Contact the DMV and request new plates for the peeling ones and they will send it to you. There's a cost for keeping your old plate number and it takes longer. But it is possible.
You can order custom plates and if you had the office hold them for you its possible. But not the common plates. Cost more as well.
Thanks! Your answer is awaiting moderation.