To find out if a person has your phone number registered to
him in the contact list on his phone, in fact, there is no choice in Android or
iOS phones through which he can identify this, but by using WhatsApp you can
verify this through a simple trick in the application that we explain step by
step With you on this post.
The method followed is through the WhatsApp broadcast message
feature, as it is known that you cannot send broadcast messages to contacts who
do not have your phone number stored in their phones, so this method will only
work with registered numbers who use WhatsApp.
The first thing you will do is open
WhatsApp and then click on the three dots " at the top. Select the new
broadcast option to create a new broadcast list, and you have to assign two or
three contacts to be able to create a broadcast list
Now if you see that it says "1 left under "read by" or "delivered to" that means that the person you want to check doesn't have your number in their phone contact, but if it says "2 left" then it means that the person referred to He has to throw your phone into his phone book.
