My phone at work has caller id. I mean real caller id. It will display the name of any person calling including a cell number. The only exception occurs when someone deliberately blocks their number which anyone can do easily. I believe all cell phones have an option to block your number so it will be shown as private. This will also block the name so those of us with caller id will not know who’s calling.You say u can check the name and address of a valid cell phone number??!
And u can do this on the internet and not through a police contact??
Caller id is more common than some might think. I recall it was already in use in the US in the 1990’s and slowly made it’s way up north. Bottom line ... for privacy purposes, you have just as much privacy with your cell phone as you do with your landline phone.