DB Regio has lost most of the regional passenger contracts in the Hannover area to the independent sector but still retains one Regio-Express route, linking Hannover with Bremen and Norddeich or Bremerhaven.
146.123 approached Dedensen-Gümmer with RE 4422, the 15:20 from Hannover Hbf to Norddeich Mole on 15 February 2017.