Hello Guys,

Just wondered. If you get a call from an unknown number, you put it into Google and hundreds of web sites come up with names like whocalledme, whocallsme, who-called, whosenumber etc. Why are there so many? Is there a lot of money to be made out of discussing unsolicited phone calls?

Thanks

I didn't find the right solution from the internet.
References:
- https://forums.digitalspy.com/discussion/2230425/why-are-there-so-many-who-called-me-web-sites
- IT Security Explainer Video Examples.