How to Track a Number?

[targetanonymous101]

How do we track the location or name using a number without notifying them we are tracking them? I've tried a lot of links online but it is not working. The number I am talking about is causing so much problem to my family as it sends inappropriate text messages. Please help as we want to know who is behind all of this.

 

[hang-the-9]

MERGED QUESTION
Question from targetanonymous101 : "Who is xxxxxxxxx"

The phone number is harassing us.

Contact the police and report it.