Who called from 3475590619

I got a call from this for 2 days straight.  The first day i didnt bother answering because I don't technically answer numbers i'm not familiar with.  Today this number called my cell again and i decided to answer.  Nobody talked.  No voicemails.  So I sent a text to this number.... no replies.

weird.

i just got this call when i pick up no one said anything

THis number has been calling for 3 weeks straight every time i answer noone says nething

Calls but leaves no message. 3475590619

Received two call from 347 559-0619 and no one is on the other end.