Phone calls made to Lima, Peru from the United States are international long distance calls. Dialing a call to Peru is a bit different than dialing a call within the U.S. There are always two codes you must dial before the area code and phone number when making a call to another country.
When dialing mobile phones in Peru, you must also dial an additional third code before the rest of the number.
Dial “011” to call outside of the U.S.
Dial “51,” the country code for Peru. Dial “9” to indicate you are calling a mobile phone. Dial the area code (one to two digits long) and phone number (six to seven digits long).