Called this AM.  I did not answer as the caller ID was not proper.  All I know is this number is assigned to AT&T.  I am sure they could stop it they wanted.  They can monitor what goes on.  I'll bet the CEO of AT&T I could stop this in 3 months if he give me the chance.  He can respond here if he wants to accept my wager.  His terms, even.

Called number back after they left a garbled message. Number was not working. Total scam when searched