The FCC gave the green light to blocking spam in June 2019. https://www.fcc.gov/news-events/blog/2019/06/05/beating-back-unwanted-robocalls https://www.fcc.gov/

The FCC gave the green light to blocking spam in June 2019. https://www.fcc.gov/news-events/blog/2019/06/05/beating-back-unwanted-robocalls https://www.fcc.gov/news-events/blog/2019/06/05/beating-back.... This resolved AT&T's concern/excuse that their legal obligation to connect all calls included spam.