At least 6.5 million wireless subscribers viewed video on their mobile phones in August, according to the latest data from comScore (NSDQ: SCOR). AT&T (NYSE: T) led the pack during the month with 4.4 percent of its subscribers tuning in to either programmed or on-demand mobile video. Sprint (NYSE: S) came in a close second with 4.2 percent and T-Mobile and Verizon (NYSE: VZ) tied at 2.4 percent, which is surprisingly low considering how much more investment and marketing the latter puts into its video efforts.

Only 2.8 percent of all wireless subscribers watched video on their mobile phones during the month. On-demand video still rakes in the most viewers with 3.6 million where amateur video clips were the most popular, followed by music videos, comedy and movie trailers. On the broadcast video side, the most popular videos were music, full-length TV shows and films, movie trailers and comedy videos. Release.