Roaming postpaid , roaming prepaid in movistar of Mexico, El Salvador, Nicaragua, Costa Rica, Panami, Colombia, Ecuador, Peru, Chile, Argentina, Uruguay, Brasil, Venezuela and por medio of T-Mobile USA in Estados Unidos. Network UMTS / HSPA (3.7G) in 2009, in Ciudad Guatemala - Network CDMA 1X EV-DO to UMTS / HSPA . - MoviStar Operator