Any clue where this is from?

came across ar out of area.have no idea whom this is

We have received a couple calls from this number, every time I answer they hang up! So freaking annoying! Don't know who they are either! If anyone finds out, please let us all know! We,  Thank You!

i am geting 15 to 20 calls per day from this number can someone tell me what to do please please

calls and hangs up