A is a service on the S-train network in Copenhagen. It is one of the base services on the network, running every 20 minutes from about 5:00 to 0:30 every day, and every 10 minutes from about 6:15 to 19:00. It runs between Hundige and Hillerød, serving all stations on the inner part of the Køge radial. During daytime on weekdays, every second train continues from Hundige station to Solrød Strand station. On Friday and Saturday nights there is also a 30 minutes service throughout the night.

Nørreport station is an S-train, metro and main line railway station in Copenhagen, Denmark. It is located in the district of Indre By, and is named after the historic Nørreport city gate, at the original location of which it is located. It is one of the busiest railway stations in Denmark, serving 165,000 people daily. The entire station is underground, with three pairs of platforms: one for S-trains, one for main line trains and one for the metro. The station is located on the Boulevard Line of the S-train and main line network. Several bus lines run through and start from Nørreport above ground.