and are owned by Norilsk Nickel. The company's industrial enterprises are the principal consumers of electricity in the city. Transport The city is served by Alykel Airport and Valek Airport. The Norilsk railway links Norilsk to the port of Dudinka on the Yenisei River, but has been freight-only since 1998. There is a road network around Norilsk (such as the A-382 which links to Dudinka and Norilsk Alykel Airport), but the city is not connected to the rest of Russia by road or rail. In essence, Norilsk and Dudinka are an island. As there is no overland communication with the "Big Land", groups of enthusiasts make road trips to Norilsk in off-road vehicles from other cities in Russia. Freight is transported to and from Norilsk via Dudinka by boat on the Arctic Ocean or on the Yenisei. Dudinka is connected by sea with Arkhangelsk and Murmansk year-round, and by river with Krasnoyarsk and Dikson during the summer navigation period. Norilsk has a municipal bus network, and there is also a bus service to Dudinka. Several dozen taxi firms operate in the city. In bad weather, workers from Norilsk Nickel's industrial enterprises, which are located outside the city, are transported to and from the sites in off-road vehicles. Norilsk Airport Norilsk (Alykel) airport is located 35 kilometers west of the city center. Large-scale reconstruction in 2005-2008 upgraded the passenger terminal building to a modern international standard. In 2016-2018, a large-scale project was carried out to upgrade the airport's runway. This has made it possible to increase the airport's capacity, offer more flights and increase air safety. In the summer of 2020, reconstruction work began on the airport as part of a state program to develop Russia's transport network. Total investment amounts to more than 12.5 billion rubles (of which 5.8 billion rubles has been invested by Norilsk Nickel). The vehicle license plate code for Norilsk is 24 RUS and 124 RUS. Communication Norilsk has a six-digit telephone numbering plan. All districts of the city are connected by a single telephone network. Fixed-line communications for the population and organizations are provided by MTS, Norilsk Telecom, NN-Infocom, and Rostelecom. Cellular communication began to develop relatively late in Norilsk: the first operator, Yeniseitelecom, began offering services only in December 2001. There are currently four mobile operators in the city: Yeniseitelecom (since 2001; since 2012 - under the Rostelecom brand; since July 31, 2015 -