How To Trace Phone Numbers

How can I trace restricted phone numbers from my cell phone?

I have a problem. I keep getting harrassing phone calls on my cell from a restricted number. They’ve managed to hack into my friend’s phone and they have the ability to see all of the text messages he sends me, along with the pictures he sends and knows exactly when he calls. I’ve told Verizon about my problem and they said the only thing I can do is to change my number. I really don’t want to do that. If possible, can anyone tell me if there’s any way I can trace these harrassing phone calls?

That’s why they are restricted, so they cannot be traced. I had the same problem with international calls coming in (expensive). Luckily, they can block those.

Personally, if the harrassing is that bad, I would change my number in an instant and be very careful as to who I give it out to.