There’s A Hidden Code On Massachusetts License Plates You Won’t Be Able To Unsee

Most people have no idea that Massachusetts license plates are actually hiding a secret code.

The next time you check out your license plate, pay attention to the final number the plate. It turns out that the last number on almost all Massachusetts plates corresponds to the month in which the car’s registration expires!

What if a plate ends in 0? That means it expires in October. Another fun fact is that only Massachusetts vanity plates expire in November, and all motorcycle and commercial plates expire on December 31.

It’s a pretty genius system, and Massachusetts is the only state to have implemented it so far. West Virginia and Missouri have similar systems, but they’re based on letter codes and aren’t really as intuitive.

For more of the coolest things Massachusetts has done first, check out this fascinating list.