People finder by phone number

Phone Detective?

I was looking around and stuck to this important services. " People finder by phone number services ". they claimed they could find people identity with just several 'step' on the computer. is that true?

here's the step :
Step 1: Enter a phone number into the search box
Step 2: Preview your results (basic information about the number, such as city/state)
Step 3: Pay to view full results (name and address of owner, if available)


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
• Verify an address
• And more

anyway, i havent try to using this services. if anyone have been used this phone detective, pls tell me what your experiences, how its work and is it worth?