ICE: Instituto Costarricense de Electricidad (English: Costa Rican Institute of Electricity) (ICE) is the Costa Rican government-run electricity and telecommunications services provider. Jointly with the Radiographic Costa rricense SA (RACSA) and Compañía Nacional de Fuerza y Luz (CNFL) form the ICE Group.ICE was founded on 8 April 1949 by Decree-Law No. 449 after the Costa Rican Civil War of 1948, in order to solve the problems of power shortages that occurred in Costa Rica in the 1940s. Since 1963 ICE provides telecommunications services throughout the country.The attempts to reform ICE throughout a set of laws in the years 1999 and 2000 generated a great social mobilization. The ruling party at that time, the Social Christian Unity Party and the main opposition National Liberation Party agreed to change the institution. Meanwhile, the citizen opposition reached 274 protests in 14 days.GSM-1800 (GPRS, EDGE),850 MHz UMTS, HSDPA,2600 MHz LTE
Movistar: Movistar is the major Spanish mobile phone operator owned by Telefónica S.A. operating in Spain and in many Latin American countries. It is the largest carrier in Spain with 22 million customers (cellphone services only) and 41.58% of market share.2 Its principal competitor in Latin America is América Móvil. It offers GSM 900/1800 MHz (Spain) 850/1900 MHz (America) (2G), UMTS900/2100 MHz (Spain) 850/900/1900/2100 MHz (America) (3G) HSDPA (3.5G) and LTE 2600 MHz (Spain) 1700/2600 MHz (America) (4G) services.The Movistar name has been in use in Spain since the launch of GSM services in 1995. The name became effective worldwide on April 5, 2005 after Telefónica Móviles purchased the Bell South mobile operations branch in South America.
Claro: Claro Americas is part of América Móvil, a Mexican telecom group serving clients in Argentina, Brazil, Chile, Colombia, Costa Rica, the Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Nicaragua, Panama,Paraguay, Peru, Puerto Rico, Uruguay. The company’s name means “bright”, “clear” or “of course” in Portuguese and Spanish.GSM-1800 (GPRS, EDGE),2100 MHz UMTS, HSPA+
1800 MHz LTE.