America Movil, which owns Claro, acquired 100% of Digicel and will have about 2.96 million users.
According to the General Superintendence of Telecommunications (SIGET), the country has about 7.4 million cell phone users.
"At least for the next six months and a maximum 12 - which is how long the merger could take - customers of both companies and the overall market will continue to see them as separate companies," adds Laprensagrafica.com.
The increase in the number of mobile phone line users during the first half of 2011 was almost half a million.
As of 30 June, the total number of lines stood at 18,528,667, an increase of 5.7% compared to the same period in 2010, according to preliminary information from the Superintendency of Telecommunications (SIT).
By the end of 2008, El Salvador had the largest number of cell phones per person in Central America, with 6.6 million for a population of 5.8 million.
Experts say the large number of cell phones is a reflection of consumerism, promoted by intense advertising campaigns. Another factor that has played a role is the large number of Salvadorans living abroad, many of whom communicate with their families back home via mobile phone.
Mobile phones, the strongest sector for the regional economy, registered a decline in earnings in 2008.
El Periódico reported on its website: "While América Móvil added 1 million new customers in Central America in 2008, revenues from its subsidiaries in Guatemala, El Salvador, Honduras and Nicaragua fell by 3.4 % and its profits were reduced by 26.6%.
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