The central post office in Lima is found on half a block form the Plaza Mayor in the street left from the presidential palace. It's a long and crowded gallery and halfway on the right hand side you'll find the post office. Who has a prepared travel scheme can give following easy to remember addresses to family and friends. On the envelope they have to write your full name (for passport check afterwards) and "Correo Central, Lima, Peru" or if you will be next week in Cusco: "Correo Central, Cusco, Peru", or "Correo Central Arequipa, Peru", etc. Even the smallest places have their correo central. A taxi can bring you there. Generally they are situated on the Plaza de Armas or a block away. Sending letters from all over the world to Peru takes about 5 to 10 days. Sometimes letters are received after two working days, but only in Lima and maybe Cusco (in case you lose your money and family has to send money for example). Opening hours are the same of the banks. Post offices are located throughout all regions of the country. For more information, go to www.serpost.com.pe
TELEPHONE International calls to Peru: 00-51-city code + phone number
Public telephones accept coins and phone cards that are sold in kiosks and supermarkets. Make certain that you are buying the phone card from the company you wish to use. It is possible to make collect calls from some public phone booths. To get more information about telephone numbers, call 103 (service in Spanish).
For the moment is the only Telephone Company in Peru the Spanish Telefónica. Calling abroad is possible in city or town in Peru, with public phone or in a telephone office. ALWAYS ask the price a minute before calling. Recently Telefónica has dropped prices for calling abroad to 60%. For example calling to the States cost now less than 3 soles a minute and Europe less than 5 soles. Telephone cards are common and public phones accepting them as well. Sending faxes are generally around S./10.
Public internet booths are found in the country’s main cities
Wireless internet service is provided in most 4 and 5-star hotels and in shopping centers
Public Internet cabins. They are cheap (S./3 to even S./2 an hour) and are getting very common in Peru. In Lima and Cusco you can find them everywhere. So, before going on holiday, join one of the free Internet services like Yahoo or Hotmail.com and let everybody know from time to time how you are doing.