Route number is 721. Remember it—the number stays the same everywhere: on the stop display, in apps, on the vehicle itself. Look for 721 specifically. If you're not sure you found the right stop, just ask someone nearby: 'Does bus 721 stop here?'

This route serves the Heidelberg (Germany) region. In larger metro areas, routes can pass through several districts or towns. To know for sure if it works for you, pull up the route map and check the key stops and direction.

Key stops along the route: Sandhausen Nord. These are handy as landmarks and transfer points. First time riding? Note down 2–3 stops closest to where you're heading and track them on the map or listen for announcements—easier than missing your exit.

This route is part of the 'Verkehrsverbund Rhein-Neckar' transit system. Within one network, payment and transfer rules are often consistent. Terms can differ though, so check current fares and payment methods in up-to-date sources before your trip.