RoamTheWorldCellPhones.com

Cellphone GSM Frequencies: 850/1900

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

Cellular carriers for Nicaragua

Empresa Nicaraguense de Telecomunicaciones S.A. - ENITEL (CLARO NIC)

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

Coverage Map

Telefonia Celular de Nicaragua S.A. (movistarNI)

Frequency: GSM 850
Website: www.movistar.com.ni

Coverage Map (NONE)

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