Who called from 3473383746

I have no idea who these people are but they have called 7 times so far today and have not left a message, this is harrassment and how can i stop it?

i didn't take any survey or anything  but have  phone 5 times i want them to stop

I haven't taken any surveys and this number has called me 7 times today and left no messages. I am sick of being harrassed.

Keep getting calls from this number.  I don't answer, they don't leave a message.