The Kaliningrad Railway (Калининградская железная дорога) was separated from the Pribaltiyskaya Railway after the breakup of the Soviet Union

Soviet Union

The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 in 1992. It is the smallest subsidiary of the Russian Railways

Russian Railways

The Russian Railways , is the government owned national rail carrier of the Russian Federation, headquartered in Moscow. The Russian Railways operate over of common carrier routes as well as a few hundred kilometers of industrial routes, making it the second largest network in the world exceeded...

 by route length (618 km) and differs from other Russian railways in having a string of standard gauge

Standard gauge

The standard gauge is a widely-used track gauge . Approximately 60% of the world's existing railway lines are built to this gauge...

 lines. The railway is headquartered in Kaliningrad

Kaliningrad

Kaliningrad is a seaport and the administrative center of Kaliningrad Oblast, the Russian exclave between Poland and Lithuania on the Baltic Sea...

. Most lines were built by the Prussian Eastern Railway before the Second World War. The railway terminal in Kaliningrad, currently known as Yuzhny Vokzal, was opened in 1929 as Königsberg Hauptbahnhof.