Who called from 6502851001

I did not answer. just curious as to who would call me from Palo Alto Ca

This number called me around midnight when my phone was off. I'm not sure who it is but I've gotten several calls from this number in the middle of the night. When I try and call back the call doesn't go through. It's starting to make me uncomfortable

I called and it hangs up on you

its Facebook that texts you or calls you

The phone rang and the text from facebook came in at the same time. Facebook is supposed to just text me a security code when I log in after shutting down the cpu.