Who called from 2242935090

Please stop trying to fax me.  You are calling a cell number.  STOP

I keep getting calls from this number. When I answer it just beeps. I get several calls between 6am and 7am. I got 6 this morning already. Does anyone know how to find out who is doing this?
224-293-5090
Country: USA
Location: Illinois (Arlington Heights, Evanston, Skokie

I got the same call with the same beeping.