I just find a site Where we could find any cell phone user data. Its help full to trace some body or for annoying calls.

Here is the site

Phone Detective

Direct Search From This Site

Infos From There site

What is the purpose of a reverse phone search?
There are many reasons why you might want to conduct a reverse phone search:

• Find out the source of a harassing (“prank”) caller
• Research a number that appeared on your phone bill
• Locate an old friend from high school or college
• Research “missed calls” on your caller ID that you don’t recognize
• Lookup someone’s exact address
• And more

I fidn out its helpfull.