The story
In 2006, the co-owners of the St. Petersburg company Korus, Russian businessman Denis Sverdlov and Bulgarian businessman Sergey Adonev, established Skartel, a provider of wireless broadbands WiMAX. In 2008, Skartel became the first company in Russia to deploy WiMAX standard networks in Moscow and Saint Petersburg in a range of 2.5–2.7 GHz. In 2010, Yota announced its plans to launch a subscription-based LTE network with a rate of 20–30 Mbit/s. The first test of the new standard network took place in Kazan on 30 August 2010, installing about 150 base stations. The investments into the LTE network deployment constituted $20 million. The fourth generation LTE network, which was tested by the Yota provider in Kazan, was switched off the next day.
On May 9, 2012, Yota's WiMAX was replaced by its LTE network. In September 2012, 4G networks were launched in such cities as Novosibirsk, Krasnodar, Sochi, Samara, Vladivostok, Ufa, Kazan, Moscow, and Saint Petersburg.
In April 2019, Yota filed for bankruptcy. The bankruptcy stemmed from a lawsuit filed against the company by its contracted manufacturer, Hi-P Singapore.
From Wikipedia’s article on Yota, shared under CC BY-SA 4.0.4