Do you know exactly what companies do when you give them your phone number?

Update, October 2026: I wrote up the full story behind this NBC segment, and what it looks like now with Flock cameras and data brokers: What I found from one phone number on NBC Nightly News.

Find out how far the network can go from just a phone number, especially at 1:50 in this segment.

Do you agree?

What personal data do you give away when you hand out your cell phone number