1) only some trains
3) only international trains and some national trains JŽP Titograd, Složeno preduzeće ŽTO Sarajevo, ŽTP Skopje
* These JŽ compositions were officially valid only for a short time. After the outbreak of civil war in Yugoslavia the changes have occurred according to the evolution of the current situation.
After the fighting ended a few years later, there has never been a resumption of operation in the pre-war traffic.