One America News' media bias rating is Right. The network was established in 2013 in partnership with The Washington Times to provide journalism for a conservative and center-right audience. OAN airs 24 hour cable news coverage as well; however, as with all of our sources, AllSides only analyzes and rates the online journalism.
Hagey, Keach. 2013, March 14. Herring Plans to Launch New Conservative News Network. Wall Street Journal. Retrieved from https://www.wsj.com/articles/SB10001424127887324392804578358743706989224
Wikipedia: One America News Network