Year 43 (XLIII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Caesar and Vitellius (or, less frequently, year 796 Ab urbe condita). The denomination 43 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

This article details the use of telephone numbers in Austria.