The state of Illinois ranked 15th in the nation in the total number of complaints regarding Robo-Calls in 2019. Matt Zajechowski (Zaj-A-how-ski) with Digital Third Coast explains how the numbers were gathered...
While it isn't fool proof, the National Do Not Call Registry is still available via the Federal Trade Commission but the best advice according to Zajechowski is to simply ignore any call you get from a number you don't recognize.