About Us
SDI is one of the leaders in the prepaid calling industry in United States. SDI is continuously helping families and businesses in communicating overseas. SDI is rapidly increasing its wholesale distribution network across the nation.

SDI has expanded its products as the industry revolutionizes. SDI’s addition of MiDRMovil provides travelers and their families a cell phone and service with unlimited calling to the Dominican Republic from the US and Canada. MyBlack011 an international pinless top up solution which allows the customer to register up to 10 phone numbers,which now has cellular top up and RTR has had an overwhelming response in the market. Also, coming soon an exclusive prepaid GSM wireless service which will offer an affordable unlimited talk, text and data plan that incorporates its direct dial international calling feature at the best available rates.

For more than a decade we have consistently provided reliable, high-quality products, services and excellent customer service.
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