b. Products and service revenues from external customer information Year Ended December 31 2009 2010 2011 NT$ NT$ NT$ (In Millions) Mobile services revenue $  71,295 $  72,955 $70,773 Local telephone services revenue 34,116 33,243 42,951 Leased line services revenue 27,477 27,412 27,068 Sales of products 15,058 15,989 22,066 Internet services revenue 21,511 22,016 21,949 International long distance telephone services revenue  12,922 12,863 12,422 Domestic long distance telephone services revenue 7,407 6,650 5,793 Others 8,575 11,302 14,471 $  198,361 $  202,430 $  217,493 Year Ended December 31 2009 2010 2011 NT$ NT$ NT$ (In Millions) Taiwan, ROC $  193,003 $  196,830 $  211,826 Overseas 5,358 5,600 5,667 $  198,361 $  202,430 $  217,493 PART III The Company has long-lived assets in U.S., Singapore, Hong Kong, China, Vietnam, Thailand, and Japan amounting to  NT$175 million and NT$219 million at December 31, 2009 and 2010, respectively. The Company has long-lived assets in U.S., Singapore, Hong Kong, China, Vietnam, and Japan amounting to NT$736  million at December 31, 2011. Except for the long-lived assets located in the aforementioned areas, the other long-lived assets are located in Taiwan,  ROC. For the years ended December 31, 2009, 2010 and 2011, the Company did not have any single customer whose net revenue  exceeded 10% of the total net revenues.  d. Major customers The users of the Company’s services are mainly from Taiwan, ROC. The revenues it derived outside Taiwan are mainly  revenues from international long distance telephone and leased line services. The geographic information for revenues is  as follows: c.  Geographic information F-58