The RaceAway Hospitality, the Indy Speedway and RadioReference.com provide free online scanner frequencies for racecar drivers, as of 2016. The two websites list primary and secondary frequencies. Indy Speedway free scanner frequencies also include IndyCar officials, TV and radio broadcast, and public announcement system.
RadioReference.com includes free scanner frequencies for NASCAR events all over the country and also for the media, including ESPN, TNT, FOX, Fox Sports and Rowdy. Some fans tune in to hear the drivers in second and third place as they discuss potential maneuvers for passing the driver in first place, as the front driver typically talks less. Drivers also talk to their pit crews, but they most likely use codes to prevent other drivers from knowing their plans.