...With a Plus Code, people can receive deliveries, access emergency and social services, or just help other people find them. Plus Codes technology is open source and free to create and use. They are much shorter than traditional global coordinates, so they’re easy to share. Plus Codes work whether you’re online or offline, you don’t need an internet connection. Plus Codes are based on a set of 20 alphanumeric characters. They do not include easily confused characters, are not case-sensitive, and exclude vowels. Plus Codes represent an area. The resolution of the area can be changed by adding or removing characters after the “+” sign. ...