O2 is the largest integrated telecommunications provider in the Czech market. At present the company operates close to eight million mobile and fixed accesses, which ranks it among the market leaders in fully converged services in Europe.

To users of mobile services in the Czech Republic O2 offers state-of-the-art HSPA+ and LTE technology. In 2012 and 2013, O2 completely altered the landscape of the Czech telecommunications playing field when the company, as the first operator in the country, opened its network to virtual operators, and, in spring 2013, revolutionized the market with its unlimited FREE tariffs.

O2 has the most comprehensive proposition of voice and data services in the Czech Republic, and it actively exploits the growth potential of the various business lines, especially ICT. O2 has access to the data centers, with total floor area of 7,300 square meters, which rank the company among the leaders in hosting, cloud and managed services. These data centers are the only ones in the Czech Republic and in Central Europe to have TIER III certification.

The company is also, with its O2 TV, the largest IP TV provider in the Czech Republic.

In Slovakia, where O2 has had operations since 2007, close to 1.7 million people used its services at the end of 2014. O2 is presently No. 3 in the Slovak telecommunications market.

O2 Czech Republic a.s., IČ 60193336, DIČ CZ60193336, Praha 4, Michle, Za Brumlovkou 266/2, Post Code 14022, Czech Republic, recorded in the Commercial Register of the Municipal Court in Prague, Section B, File 2322