This is a "new one"! Just started calling recently. It is from a number unknown to us, and therefore is not answered! Caller ID shows Cable. We live in an area that does not have access to cable of any kind, so robo calls of this type are useless and annoying! Not sure where this area code is from, but it really doesnt matter because the calls will continue to go unanswered!
According to google, 972 is Texas. However, that does not mean they are actually calling from that area. With the technology available now, they could be out of the country and just spoofing numbers.