In the West African nation of Mali, back street vendors power the mobile phone market. The major players -- Ikatel, a division of France Telecom, along with the homegrown Malitel -- have official stores, but most of their sales come from the street. In West Africa, subscription service is rare. Instead, mobile phone users purchase plastic-wrapped cards of varying denominations, scratch off a silvery bar much like those found on an instant lottery ticket, and recharge their phones with the code hidden underneath. These cards can be purchased from tin-roofed convenience shacks, egg sandwich vendors, or random men walking down the street, stacks of soccer jerseys slung over their shoulders.
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