New FCC Rules Have Cut Robocalls Down By 30%

The FCC says robocalls are down 30 percent thanks to a new mandate passed this summer.

Officials say it's all thanks to a new technology called STIR/SHAKEN, which prevents 'spoofing' - a practice that lets robocallers leave a fake number on your caller ID.

Ever since the FCC began requiring large phone companies to install STIR/SHAKEN, robocalls have dropped by nearly one-third.  

But it's not 100% effective - one analyst called it "a speed bump but not a wall".