Some 5.3 billion video ads were viewed in June -- 15% more than in May which had 4.6 billion, per comScore Video Metrix.
Video online commercials reached 49.2% of the U.S. population in June, up from 45.4% in May. Total ad minutes climbed to 2.3 billion from 2.01 billion. Video ads per viewer rose to 38.8 from 33.7 a month before.
Looking at the video ad networks, Tremor Media Video Network was first with 753 million ads (and in second place overall to Hulu, which had 1 billion). Other video ad networks: BrightRoll Video Network had 629 million. Specific Media was at 422 million, Undertone was at 322 million, and SpotXchange video ad network was at 282 million.
Ad exchange Adap.tv bested all other exchanges at 678 million, according comScore. In terms of reach for the total U.S. population, Tremor Media was 44.3%, BrightRoll Video Network, 38.5% and Break Media, 37.6%.
Video ads surveyed include streaming-video advertising only and other types of video monetization such as overlays, branded players, matching banner ads, home page ads, etc.
The digital research company says time spent watching video ads totaled more than 2.2 billion minutes during the month, with Tremor Media Video Network delivering the longest duration of video ads -- 429 million minutes.
Video ads reached 49% of the total U.S. population an average of 35.6 times during the month. Hulu had the highest frequency of video ads to its viewers with an average of 38.8 over the course of the month.