Bharti Airtel which has operations in 20 countries across South Asia and Africa moved up one notch in the world wide ranking to be the fourth largest mobile operator in the world in terms of subscribers, according to Wireless Intelligence ‘Scoreboard’.

At the end of the quarter ended June 2012, the Company had over 250 million mobile subscribers across its operations, representing 13% Y-o-Y growth.

Among the top five operators, China Mobile occupies the top position with 683.08 million subscribers. Vodafone is at number two position with 386.88 million subscribers while America Movil Group and Telefonica Group occupy third and fifth position with 251.83 million and 243.51 million subscribers.

Bharti Airtel had become the fifth largest mobile operator in the world following its acquisition of Zain Group’s mobile operations across 15 African nations in June 2010.

In India, Bharti Airtel's product offerings include 2G, 3G and 4G wireless services, mobile commerce, fixed line services, high speed DSL broadband, IPTV, DTH, enterprise services including national & international long distance services to carriers. In the rest of the geographies, it offers 2G, 3G wireless services and mobile commerce. Bharti Airtel had over 259 million customers across its operations at the end of September 2012.

Recently Airtel has launched 4G services in Pune. Before this the company had rolled out 4G services in Kolkata and Bengaluru.