Did an unknown number call you? No problem: find out its identity with a simple trick.

You’ve probably noticed that the list of unknown calls is getting longer and longer, to the point where you no longer know who you’ve spoken to and who you haven’t answered. Withheld and unknown numbers annoy you, frustrate you, and leave you helpless in a potentially dangerous situation, especially if you’re the victim of harassment. But have you ever tried to understand the difference between a withheld number and an unknown number? The answer could be useful and help you better protect yourself.