And page views are up 76% since the end of last year.
Opera says that 71 million mobile users are now using its Opera Mini browser on their handsets.
That's 21 million more people than are using the desktop browser that first made Opera's name, showing how the company's userbase has tilted towards mobile in recent years.
The company has released more mobile stats too. Those 71 million users are generating 36.9 billion page views a month - up 76% since December 2009 - an average of 519 page views per user per month.
Opera Mini has doubled its userbase since December 2009, and now works on more than 3,000 mobile devices, and has users in 195 countries.
According to TechCrunch, the company is also predicting that mobile web usage will overtake desktop browser usage by 2015.
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