brands. According to Kyivstar, the process of merging operators was completed by the end of 2012. In 2013, the provision of mobile financial services was launched, in particular the Mobile Money service, which allows subscribers to top up bank cards and pay for goods and services of various companies from mobile phones. In the ranking of the 500 largest companies in Central and Eastern Europe compiled by Deloitte, Kyivstar took 146th place, the highest among Ukrainian mobile operators. On August 11, 2014, Kyivstar stopped serving its subscribers in Crimea due to an armed attack on the company's office in Simferopol. In February 2015, Kyivstar announced the termination of telecom services in the temporarily occupied territories of the Donetsk and Luhansk regions. On February 23, 2015, Kyivstar purchased a license to provide services in the UMTS standard, which belongs to the third generation of mobile communications (3G). Under the terms of the tender, the operator undertook to launch a third-generation network within 18 months after the tender in all regional centers of Ukraine, and 6 years in all district centers and all settlements with a population of over 10 thousand people. In April 2015, Kyivstar started providing 3G services. In June 2015, the company rebranded, introducing changes in the company's corporate style and values, which now correspond to the new slogan of the operator: "Simple. Innovative. Better". November 14, 2016, was the 20th anniversary of the opening of the listing on the US Stock Exchange, one of the most important milestones in the history of the international group of companies VEON, which includes the national telecommunications operator Kyivstar. On the same day, Kyivstar was the first in Ukraine to launch tariffs that combine mobile, home Internet, and TV services in one offer - Kyivstar All Together. On March 23, 2017, Kyivstar initiated the reform of radio frequencies in the 1800 MHz band to provide all participants in the telecom market with equal opportunities to develop 4G communication. On April 25, 2017, Kyivstar announced the readiness of the network equipment to provide 4G communication services. To modernize the network, the company installed equipment based on the Single RAN solution (single radio access). This solution allows the use of equipment for various mobile communication standards, including 3G and 4G, within a single software and hardware complex of the base station. On November 29, 2017, the National Bank of Ukraine granted the subsidiary Kyivstar