He likely has a mobile phone or is unlisted. Switch to Facebook. Type "Juan Perez Palermo Buenos Aires" into the Facebook search bar. Look for a profile picture that matches. If you find him, send a message.
Remember: Always respect privacy. If a number is unlisted or a profile is private, do not harass or spam. Buenos Aires is a friendly city, but Porteños value their digital boundaries. Paginas Blancas Buenos Aires, White Pages Argentina, buscar personas Capital Federal, guía telefónica Buenos Aires, Alicia Telefónica, directorio de personas, encontrar números de teléfono. paginas blancas buenos aires
Introduction: The Digital Evolution of the Phone Book He likely has a mobile phone or is unlisted