Telefónica Celular (Celtel), a subsidiary of Millicom International Celular, is a mobile telephony provider in Honduras operating under the brand name Tigo. The company operates a GSM and a 3G network and has also acquired a WiMax license but has not yet performed a commercial launch. Celtel launched operations in 1996 as the first mobile operator in Honduras and held a monopoly status until late 2003, when Megatel entered the market as a second operator. In 2014, Honduras' congress extended the concession contract of the company until 2028. That same year, Tigo launched its 4G LTE network in the country. Celtel was founded in 1994 and is based in Tegucigalpa, Honduras.