What Frequencies for Mobile (Mega Hertz Bands or Mhz) are used around the globe?
GSM-850 and GSM-1900 are used in the United States of America and some South American locations as well as Canada. GSM-850 is occasionally referred to as GSM-800. GSM-900 and GSM-1800 are used in other parts of the world with the exception of Japan and Korea. W-CDMA/3G is the standard in Japan and CDMA is used for South Korea.