Originally Posted by
realworld
Oops, good point. Last trip was to Cologne, so the mistake. But do those tickets allow you to cross regions? I am a bit fuzzy on the borders.
Again, I am open to correction by the true DB experts, but I don't believe they allow you to cross regions. The maps for each region are available in the link I posted above, toward the bottom of the page >> "Where is this ticket valid (rail maps)"