Who called from 2144460044

I have received two calls today from this number.  They do not leave a message.

Called twice. Left message saying his name is Greg Rigsby and he has an important matter to discuss. Doesn't say what company he works for or who he's even calling.

Calls alot leaves message says he is Greg tried call number back and have no clue who it was

Called asking for my wife, I asked who this was, and a woman said "Well that was ugly, we'll call back later. No info on who this is.

They Call twice but  never said from what company they call....the woman just say call back