Dialing international calls can be very confusing. We suggest you take time to learn how to properly dial calls both from and to all of the your destinations before departing the States. You should also preprogram important numbers (e.g., the nearest embassy or consulate, insurance contact information, and emergency contacts) into your cell phone, using the correct dialing format for the country/countries you will be visiting, before departure.
Visit countrycode.org to view a worldwide list of country codes. This website also offers instructions on how to dial from/to your country of choice.
Always carry the address and phone number of the nearest U.S. Embassy or Consulate, in English and the local language.
Agree on regular times to check in with your emergency contacts.
Be sure to program important emergency numbers into your cell phone before you depart.