Set alphanumeric keyboard to show numeric first in EditText(C# android)

I'm implementing an Android App and I need a tip. My EditText, usually, is just numbers, but sometimes numbers and letters.

This is the keyboard that I need as "default", when the EditText is focused:

If I put android:inputType="phone" or android:inputType="number", the result isn't what I need:

I need numbers and letters. So, is it possible to do?