It is a prank thing which is used by the people.It not give the correct location of Mobile number as it says the sim company name only.Its only get the results who have created on the mobile number Locator.As this app make the people fool and the make stupiditi of them.It mostly said this number not exist as the call be possible.It is waste of time.When correct number is it says tries again.
According to me as I suggested you to not used this prank thing as they made stupid of us.Plese not trust on that prank and stupid thing.It only the waste of time.