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Geographic Information
9 Months Ended
Sep. 30, 2011
Geographic Information 
Geographic Information
13. 
Geographic Information

j2 Global maintains operations in the U.S., Canada, Ireland, Japan and other international territories. Geographic information about the U.S. and international territories for the reporting periods is presented below. Such information attributes revenues based on the tax juristiction applicable to the operation generating the revenue.
 


Revenues for the nine months ended September 30, 2011 reflect a change in estimate of the remaining service obligation to eFax® annual subscribers in the amount of $10.3 million which reduced subscriber revenues predominately in the United States (See Note 1 – Basis of Presentation) for further details.