10 free Mobile Phone Operators trivia questions with answers — trivia quiz, new questions added Aug 2026.
The first mobile phone call was made in 1973, but it took operators like AT&T, Vodafone, and China Mobile to connect billions of people globally. Think you know the networks that built modern communication? Test your knowledge with 10 questions about the titans of telecom.
All 10 questions with answers and explanations. Play the quiz
Q 01Which company is the world's largest mobile operator by subscriber count?
China Mobile
China Mobile is the world's largest mobile operator by subscriber count, having crossed one billion subscribers in the second quarter of 2024.
Q 02Vodafone Group, a multinational telecommunications company, originated in which country?
United Kingdom
Vodafone Group Plc is a British multinational telecommunications company, with its global headquarters located in Newbury, Berkshire, England.
Q 03Which of these is a major mobile network operator in the United States?
T-Mobile
T-Mobile US is one of the 'big three' wireless providers in the United States, alongside Verizon and AT&T.
Q 04Which company is a major mobile network operator in Japan?
NTT Docomo
NTT Docomo is one of the largest mobile network operators in Japan, offering a wide range of mobile services.
Q 05What does the acronym MVNO stand for in the mobile telecommunications industry?
Mobile Virtual Network Operator
MVNO stands for Mobile Virtual Network Operator, which is a wireless communications services provider that does not own the infrastructure over which it provides services.
Q 06Which company acquired Sprint Corporation in 2020?
T-Mobile
T-Mobile US completed its acquisition of Sprint Corporation on April 1, 2020, leading to the phasing out of the Sprint brand.
Q 07Which of these is a prominent mobile network operator in Europe?
Deutsche Telekom
Deutsche Telekom, headquartered in Germany, is a leading telecommunications company and a major mobile network operator across Europe.
Q 08Which UK mobile network operator was originally launched as Cellnet?
O2
The network now known as O2 in the UK was originally launched in 1985 as Cellnet, a joint venture between British Telecom and Securicor.
Q 09Which Spanish telecommunications company owns the O2 mobile network brand?
Telefónica
The O2 brand is owned by the Spanish telecommunications company Telefónica. In the UK, O2 is part of a joint venture with Liberty Global.
Q 10Which of these is NOT a major mobile network operator in India?
China Mobile
Jio, Airtel, and Vodafone Idea are among the primary mobile network operators in India. China Mobile is a major operator in China, not India.