Thank you so much for your reply.
I have another question that I would like to ask you. It is a bit long, but I would really appreciate your help, just to make sure I understand correctly.
Take for example two addresses I found online:
The first one is R-727, Ancholi Overpass, Karachi, Pakistan.
The second one is 1-J 10/1, Muslim League Quarter, Nazimabad.
Are R-727 and 1-J house numbers or street numbers? And what about 10/1 in the second address?
Last question: if R-727 and 1-J are street numbers, does that mean that the first address lacks a house number?
Thanks a lot!!
Allan