Please leave your phone number We are gladly call you back Name (Pflichtfeld / Required field:): Telefonnummer / Phone Number (Pflichtfeld / Required field:): Betreff / Subject: Sicherheitsfrage / Security Question (Pflichtfeld / Required field:): Address i31 hotel berlin Invalidenstraße 31 Berlin 10115 Phone and Mail +49 (0)30-965357000 [email protected]