Dial the international dialing code (011) of the United States from your phone.
Dial the country code for Mexico after dialing the international code. The country code for Mexico is "52." If you are calling a cell phone number in Mexico, you have to add a "1" after this country code as well.
Dial the area code for the place you are calling. This code will probably consist of three numbers or two numbers (depending on the area's population) For instance, the city code for Mexico City is "55."
Dial the local phone number right after the area code. This number will consist of either seven or eight digits. The call will then be connected to the person. Your number will look something like: 011-52-55-1345438