External access to the ESO Phonebook is discontinued since 02/Feb/2026. Apologies for the inconvenience. <p>Please use the <a href="https://www.eso.org/public/about-eso/travel/">ESO Contacts and Travel</a> page at <a href="https://www.eso.org/public/about-eso/travel/">https://www.eso.org/public/about-eso/travel/