Who called from 2019847867

Just got a call from this number at my business. When I picked up the phone, it immediately hung up.

Also got another from this number dated 12/19 about 4pm.

I didn't pick up, so it went to my answering machine. The caller left no message and simply hung up. I just renewed my number on the Do Not Call national list.

Got another call from this number at my business 10:45 this am. Answered the phone.....dead silence for several seconds, and then it hung up.

Got several calls from them.  First time, I hung up.  Finally, I said hello and she said that she wanted to speak to the owner of the business.  I told them that the business was closed and she hung up.  Don't know what they wanted but it seems like a scam towards small businesses.