- Seven countries: Austria, Czech Republic, France, Germany, Hungary, Romania, Slovak Republic.
- Eight Infrastructure Managers and one Allocation Body: CFR, DB InfraGO, GYSEV, MÀV, ÖBB-Infrastruktur, SNCF Réseau, SŽCZ, VPE, ŽSR
- Corridor length: approx. 6800 km
