RoamTheWorldCellPhones.com

Cellphone GSM Frequencies: 850/900/1900

(This means you will need a GSM cellphone that will work on 850MHz, 900Mhz, or 1900Mhz to use it in El Salvador.)

Cellular carriers for El Salvador

CTE Telecom Personal SA de CV

Frequency: GSM 1900
Website: www.claro.com.sv

Coverage Map

DIGICEL, S.A. de C.V.

Frequency: GSM 900
Website: www.digicel.com.sv

Coverage Map

Telemovil EL Salvador S.A

Frequency: GSM 850
Website: www.tigo.com.sv

Coverage Map

If you've used either of these networks or roamed in El Salvador, please post about your experience and the cost. Feel free to ask questions.