What are the first two numbers you dial before making an international call through Mobile Phone?

I am trying to make a call to holland.What are the first two numbers you dial before making an international call through Mobile Phone?
first you dial 1 to get an out side line then 011 then 48 for the operator in Poland and then that persons area code and their phone number and wait to be connected that easyWhat are the first two numbers you dial before making an international call through Mobile Phone?
011 (if you are calling from USA)





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