
(This means you will need a GSM cellphone that will work on 850MHz, 900Mhz, 1800Mhz, or 1900Mhz to use it in the Dominican Republic.)
Frequency: GSM 850/1900
Website: www.claro.com.do
Frequency: GSM 900/1800/1900
Website: www.orange.com.do
If you've used either of these networks or roamed in the Dominican Republic, please post about your experience and the cost. Feel free to ask questions.