How do I find my seats on board of the trains?

Most long-distance trains in Europe have either optional or mandatory seat reservations. Your seat reservation is valid for a specific train and consists of a carriage number and a seat number. The carriage numbers are displayed on or next to the doors of the train, and the seat numbers displayed on or above the seats. 

Tips:

• When in doubt about where your seat is, ask the train staff. 
• An overview of which trains require mandatory reservations can be found here.
• Mandatory seat reservations come as standard on all tickets bought via Happyrail, and all Rail Tour package holidays have all necessary reservations included.
• Regional trains like R, RV, RE, RB, S and TER trains don't feature seat reservations. On these trains you take any free seat.

Carriage numbers are almost always displayed on the doors or next to the doors:

Seat numbers are displayed on the seats themselves or directly above: