To whom does this number belong?

Someone called me but i was looking for my phone, i tried to answer but they hung up as i swiped the screen. It was an unknown caller, but went to my missed calls to check it out and it doesn't have the option to call it. I was thinking maybe a scam but isn't the idea of a scam to make you call back? Now i am just curious and want to know who it could have been that called me.