With 1.26 billion Mobile Users combined India and China account for 30% global users

via chartsbin.com
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Buoyed by expanding markets in India and China, global mobile subscriptions galloped to total around 6.3billion last year, with subscriptions growing at about 9% YoY growth according to a report by  Ericsson

According to theEricsson Mobility Report, total mobile subscription in China stood at 1.26 billion, while in India it was 713 million in 2012. The net additions in the Q4 of 2012 was 140 million.China accounted forabout 22 per cent of net additions, adding around 30 million subscriptions,followed by India (11 million), Bangladesh (9 million), Indonesia (8 million),and Nigeria (5 million), "Global mobile penetration reached 89 per cent in Q4 2012 and mobile subscriptions now total around 6.3 billion. 

However, the actual number of subscribers is around 4.4 billion, since many people have several subscriptions. China accounted forabout 22 per cent of net additions, adding around 30 million subscriptions, followed by India (11 million), Bangladesh (9 million), Indonesia (8 million), and Nigeria (5 million), it added.