AT&T, Sprint, T-Mobile and Verizon led wireless advertising in 2015

wireless advertisingWhether it is Verizon's (NYSE: VZ) colored balls commercial or T-Mobile (NYSE:TMUS) CEO John Legere's infamous competition rants, it's clear that wireless operators spend a lot of money advertising their brands.

In its latest wireless industry advertising spending and digital engagement report, "The top 10 advertisers in wireless in 2015: From AT&T to Straight Talk," FierceWireless -- through a partnership with TV advertising measurement firm iSpot.tv -- takes a look at the wireless industry's advertising spending and digital engagement during 2015.

According to iSpot's measurements, 35 wireless brands placed 466 spots 440,000 times for a total ad value of $1.89 billion in 2015. Check out FierceWireless' report here.