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Isn't 24/7 in the Cologne area from Duren to Troisdorf ? http://kursbuch.bahn.de/hafas/kbview.exe/dn/KB450_13_H_Mo_Fr_G28112016.pdf?filename=KB450_13_H_Mo_Fr_G28112016.pdf&orig=sT

Have a look at [1]. Things seem a bit more complicated. -- Kgfleischmann ( talk) 13:00, 12 August 2017 (UTC) reply

Thank you. What is the wochenfeiertagen ? — Preceding unsigned comment added by Forza NYCFC !! ( talk • contribs) 16:39, 12 August 2017 (UTC) reply

The colour of the S23 is purple, not green.

The Rhine-Ruhr S-Bahn and Cologne S-Bahn appear to be linked but different operating concepts. The German Wikipedia treats them as separate. Mackensen (talk) 14:06, 10 July 2021 (UTC) reply

@ Mackensen just saw this and pinging you incase you still want to do this. Gonnym ( talk) 09:31, 1 July 2022 (UTC) reply