This is the list of operational Mobile phone connection companies in Pakistan:
Ufone
Telenor
Mobilink
Instafone
Warid
Zong
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There are various websites which allow you to compare mobile
phone plans and companies. One such website is
http://www.moneysupermarket.com/mobile-phones/ where they give a
listing of competing companies and plans!
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The largest mobile phone operator in the world, by number of
subscribers, is China Mobile from China. At the end of 2010, they
had 584 million subscribers.
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India Is the Largest Mobile phone Users in the World