DB Regio AG is a subsidiary of Deutsche Bahn which operates regional and commuter train services in Germany. DB Regio AG, headquartered in Frankfurt am Main. Wikipedia
Customer service: 011 49 331 2356881
Headquarters: Frankfurt, Germany
Founded: January 1, 1999
Subsidiaries: Chiltern Railways, Regionalverkehr Oberbayern, Regionalbus Braunschweig GmbH, RBB, and more
Parent organization: DB Fernverkehr AG