The company started its history in Ukraine in 1994, and on December 9, 1997 the first call was made in the Kyivstar network. Today Kyivstar is the largest telecommunications operator in Ukraine, which provides communication and data services based on a wide range of mobile and fixed technologies, including 3G. The company's subscribers are more than 26 million mobile customers and about 820,000 fixed Internet customers. CRM-system OneBox has built-in integration with Kyivstar. Kyivstar is a Ukrainian telecommunications operator.