The Chinese telecommunications company China Mobile is the world leader in terms of the number of subscribers (833.9 million as of the end of March 2016) and the capitalization of the mobile operator. In terms of turnover, it is the second mobile operator in the world after Vodafone, which owns 3.3% of China Mobile.

Vodafone provides mobile services to 434 million users (second in the world after China Mobile) in 30 countries. In another 50 countries, Vodafone is a partner in a network over which it does not have full control. Two main regions of operation: Europe; Africa, Middle East and Asia Pacific. The largest number of subscribers is in India (184 million in 2015), in five other countries the company has more than 10 million subscribers (Great Britain, Germany, Turkey, Spain and Italy).

Bharti Airtel Limited, also known as Airtel, is an Indian global telecommunications services company based in New Delhi, Delhi, NCT, India. It operates in 18 countries in South Asia and Africa, the second largest mobile network operator in India and the second largest mobile network operator in the world with over 439.84 million subscribers.

América Móvil is a Mexican telecommunications holding. The fourth mobile operator in the world in terms of the number of subscribers. One of the largest companies in Latin America. Mexico controls nearly 80% of the landline market. Its Mexican subsidiary Telcel is the largest cellular operator in Mexico, with a market share of over 70%.

The company ranks eighth in the world among telecommunications companies (by market capitalization), serving 325 million subscribers. Mobile services are provided under the brands Movistar (Spain and Latin America), O2 (Great Britain and Germany) and VIVO (Brazil).

Starting as a mobile (GSM) and paging operator, it currently provides a wide range of services, including a nationwide GSM cellular network, international and local telephony, data exchange, broadband Internet access and IP telephony services in mainland China and operates CDMA network.

MTN Group Limited, formerly M-Cell, is a South African multinational mobile communications company with operations in many African and Asian countries. Its office is located in Johannesburg. As of December 2020, MTN had 280 million subscribers, making it the 8th largest mobile operator in the world and the largest in Africa.

The main business of the company is the provision of cellular services. Telenor controls mobile operators in Bulgaria, Norway, Sweden, Denmark (Telenor Denmark), Hungary, Serbia, Montenegro, Malaysia (DiGi.Com), Bangladesh (GrameenPhone), Pakistan, India, Thailand. At the end of 2004, Telenor's subsidiary mobile operators served 22.1 million subscribers.

Orange S.A. - a French telecommunications company, one of the world's leading telecommunications operators, mobile operator and Internet service provider, the company's subscriber base exceeded 190 million people in 32 countries, including 128.8 million mobile subscribers and 13.4 million broadband Internet users (ADSL) all over the world.

Idea Cellular is an Aditya Birla Group Company, India's first truly multinational corporation. Idea is a pan-India integrated GSM operator offering 2G and 3G services, and has its own NLD and ILD operations, and ISP license. With revenue in excess of $4 billion; revenue market share of 18%; and subscriber base of over 150 million, Idea is India’s 3rd largest mobile operator. Idea ranks among the Top 10 country operators in the world with a traffic of over 1.5 billion minutes a day.

T-Mobile also has ownership interests in several Eastern European mobile operators. Overall, T-Mobile now has about 152 million subscribers, making it the 16th largest cellular operator in the world. The number of customers in the United States (the third largest mobile operator in the country) exceeded 70 million.

Etisalat is a trademark of the UAE-based telecommunications company Emirates Telecommunications Corporation. National Internet Service Provider of the UAE. Provides communication services in 18 countries of the Middle East, Asia and Africa. One of the largest mobile operators in the world (over 100 million subscribers).

We are an award-winning international communications company operating across the Middle East, North Africa and Southeast Asia. With a customer base of more than 138 million people, we work hard to provide the best customer and network experience we can. We believe in the power of mobile technology to bring about social and economic progress.

MTS is a Russian telecommunications company providing services in Russia and the CIS countries under the MTS trademark. The company provides cellular services (in the GSM, UMTS (3G) and LTE standards), wired telephone services, broadband Internet access, mobile TV, cable TV, satellite TV, digital TV and related services, in particular, content sale services.

MegaFon is a Russian telecommunications company that provides cellular services (GSM, UMTS and LTE), as well as local telephony, broadband Internet access, cable TV and a number of related services. The number of mobile subscribers at the end of 2015 was 100.8 million people.

The company's GSM network covers 80.44% of the territory of Turkey, where 97.21% of its population lives. Turkcell served 62 million subscribers in March 2009. The company's revenue according to IFRS for 2010 amounted to $ 5.96 billion, net profit - $ 1.17 billion.

VimpelCom, under which its subsidiaries provide telecommunications services in Russia (Vimpel-Communications) and the CIS countries. In particular, this brand provides services of cellular (GSM, UMTS and LTE) and fixed communication, wired (FTTB) and wireless (Wi-Fi, "Beeline WiFi") high-speed Internet access, IP-television ("Home digital television Beeline "And" Mobile TV ").

Russian telecommunications company founded by the Swedish group of companies Tele2 AB on the basis of networks acquired in the Russian Federation. Has been working since 2003. Tele2 Russia is owned by VTB Bank, Rostelecom, SOGAZ and Bank Rossiya. At the end of 2017, it provides cellular services to more than 40.6 million subscribers.

Ukrainian telecommunications company providing communication and data transmission services based on a wide range of mobile and fixed technologies, including 3G and 4G (LTE). The company's mobile network covers all cities of Ukraine, as well as more than 28 thousand rural settlements, all major national and regional highways, most of the sea and river coasts.

Moldcell is a mobile operator in the Republic of Moldova and part of the international TeliaSonera group, headquartered in Stockholm, Sweden. Moldcell company started its commercial activity in 2000. Currently, Moldcell has over 1 million subscribers and is a provider of mobile communication services.