 The possible travel connections are correct for the period of operation and do not reflect the current travel connections for these stations.During major construction works at Pankow station and in the north–south tunnel between September 2005 and May 2006, the S86 operated between Nordbahnhof and Birkenwerder to maintain a service to the outer railway ring stations.The line joined with the (S26) at Nordbahnhof for 3 weeks to provide a through service to Teltow Stadt from 8 May 2006 until 27 May 2006.