@sarahadi Cricket only offers service in the U.S., Canada, and Mexico. If your phone is unlocked you can buy a sim from a cell phone company there and use it in your phone. Wi-Fi calling/texting is an option too.
@sarahadi Canada and Mexico are included in the unlimited plans but not the lower plans. There are no options to use your Cricket service in any other country than the U.S., Canada, or Mexico except for Wi-Fi calling.