The network currently includes four high speed lines suitable for 300 kmph traffic: HSL 1 runs from just south of Brussels to the French border, where it continues to a triangular junction with LGV Nord for Paris Nord and Lille Flandres (and London beyond that), HSL 2 runs from Leuven to Ans and onward to Liège-Guillemins, HSL 3 runs from Liège to the German border near Aachen and HSL 4 connects with HSL-Zuid in the Netherlands to allow services to run from Antwerpen-Centraal to Rotterdam Centraal.