The Deutsche Bahn network spans Germany through long-distance, regional, and metropolitan rail corridors. Key ICE routes include Berlin-Munich via the high-speed line through Erfurt, Frankfurt-Cologne on the Cologne-Frankfurt high-speed line, Hamburg-Berlin, and Stuttgart-Munich. Major hubs include Berlin Hauptbahnhof, Frankfurt Main Hauptbahnhof, Hamburg Hauptbahnhof, Koln Hauptbahnhof, Munchen Hauptbahnhof, Stuttgart Hauptbahnhof, Leipzig Hauptbahnhof, and Hannover Hauptbahnhof. DB Fernverkehr operates ICE, Intercity, and Eurocity trains on national and selected international routes. DB Regio operates regional services such as Regional-Express, Regionalbahn, and S-Bahn networks in many German regions under local transport authority contracts.