Phone companies charge different long distance rates depending on your calling plan. There are cell phone plans that allow you to call international numbers, but using a phone card could be cheaper. Calls to international cellular numbers may have higher rates than calling home phone numbers.
Contact your phone provider about the rates for placing international call. It will give you an idea on the cost of dialing internationally from the United States.
Know the time difference between your location and the area you want to call. If you don't know this, go to www.timedial.net and click “Time Difference Calculator” button. Select “United States,” your state and the destination country. It will show you the time difference.
Dial 011, the exit code for the United States, the destination country code, city/area code and phone number. If you only have the local phone number, go to www.howtocallabroad.com to get the country and area codes.