Me too!  This has gotten WAY out of control and flat out ridiculous. I have way too many numbers saved as IGNORE, almost as many as my contacts now and that includes the contacts for our company!  I just counted and I have 168 numbers saved as IGNORE!!  Thirty (30) of those are Google scammers and most of the calls are recordings..probably 98%.  So much for making robo-calling illegal.
Do NOT ever call any of these numbers back!  That just confirms the number is good and there is a human that answers. Why they continue to call after you've asked to be removed is beyond me.
I work for a very small construction company and I keep the phones forwarded to my cell at all times so I have the luxury of not answering this crap and ignoring these calls.  I feel so sorry for those out there that work for a large and/or high company.  Something has got to be done about this crap. I don't know what, but they've got to be shut down.  
I do know Pacific Telecom is known for being the carrier for a LOT of scam companies.  Maybe they should get charged every time they allow such calls to take place?  Bet they'd regulate their customers better!!