If you dial a number that is NOT in your contacts it is UNKNOWN to your phone.
So... You are asking then for the number to be identified or CALLER-ID?
There are some apps for that but I'm not sure they interact as you are dialing but operate post
calling or receiving a call.
You could always Google a number prior to calling if you are not sure who it is you are about to call, just a suggestion.
Hope that helps.