So i use FireRTC to call scammers only. Never used it to call a random person and prank them. Various websites that allow you to report numbers for Scammers have listed me as either a prank caller or an Indian scammer. I am a prank caller, but I think must of us can agree we use our power for good. Its really just to waste time so scammers do not get to the ignorant and innocent. I don't know if on FireRTC numbers on accounts are switched often, or someone had the number before me but I have never prank called innocent people. Some of these reports date back to February of 2017 and I only had that account until a few weeks ago. Don't know, but if you use FireRTC look up your number on white pages or something.