The Cologne–Aachen high-speed line is used by numerous freight trains due to its location between the Köln-Eifeltor freight yard on the West Rhine railway and Aachen West, the eastern end of the Aachen–Tongeren railway. Much of the freight traffic is carried by DB Cargo and "Cobra" (Corridor Operations Belgium Rail), a subsidiary of Deutsche Bahn, and SNCB. Other regular services are a SBB Cargo Combined transport train hauled by TRAXX locomotives and freight trains operated by Crossrail (now part of Cargologic) and RTB Cargo, which uses diesel-hauled goods exchange trains (Übergabegüterzuge) from Düren to Stolberg and back. The line is also used by freight trains to and from Mönchengladbach on the section between the Cologne-Ehrenfeld and Köln-Müngersdorf Technologiepark stations.