Who called from 4044001124

My cell phone is being bombarded with this calls -- I want them stopped.
I refuse to answer and they come from severl different numbers.

Getting unwanted sales/robot calls from this number.

Just got a call on my cell phone. Did not answer and they did not leave a message.

Called my cell and nobody there when I answered.  Disconnected a few seconds later.

I get calls from this number about once a month. nobody there when you answer.