What mobile phone service is available in Korea?
Easy part: No GSM. Only CDMA. Sutle part: The CDMA is IS-95A and partly IS-95B, US standards. Two frequencies: 800MHz and 1.8GHz. Yet, you won’t be able to bring and use your phone here. The frequency is a little bit different (though just) from those of the US, and it won’t operate here. CDMA is not yet enjoying the universal roaming of GSM. The next CDMA, IMT2000, will perhaps. Rental: There is a rental service at Kipmo International Airport in Seoul.