go to
http://www.newsdakota.com/page/sports. They have all region 3 games, and I don't know about all games, but some from region 1 and region 4. I don't which frequencies they're using for all games - just go to the page and click on the link you want. If you're actually listening on the radio and not the website, Region 3 is 98.3 FM, and the Oakes/Northern Cass game would be 1220 AM, those I know.