I am not certain if it was an anti-trust action, but when they broke AT&T apart, phone rates went down (up until the break-up long distance calls were 25 cents a minute in 1970 money), service went up, and innovation went off the charts.
I remember when you had to put a deposit down to get a phone that you rented and long distance calls were costly. When you moved, it took an eternity to get your deposit back. Now, my wife and I pay $70 for two phones (that we own) with unlimited long distance, text and data.
Ok good point but there arenot many and a lot of damage had been done by the enforcers