The "InterCity" service 2370/2371, dubbed "Schwarzwald", going from Hamburg to Konstanz, and from Konstanz to Hamburg and Stralsund, still makes this trip daily in parallel with the RegioExpress trains, and replaces that service on the route between Offenburg and Konstanz. On weekends, an additional "IC" train with numbers 2004 and 2006/2005, dubbed "Bodensee", connects Konstanz with Dortmund, Emden, and Norddeich. Freight traffic is of only secondary significance. In the route table of the DB, the Black Forest Railway is listed under the number 720.