What does 475 mean in US Phone Area Codes?

475

Year 475 (CDLXXV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Zeno without colleague (or, less frequently, year 1228 Ab urbe condita). The denomination 475 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.

see more »