DIGIPIN, or Digital Postal Index Number, is a 10-character alphanumeric code assigned to a 4m x 4m area in India, providing a precise location, unlike general PIN codes. Developed by India Post, IIT ...

Gregor J. Rothfuss, the technology lead for the Google Maps team, announced on Google+ that Google Maps now supports places without addresses. This is also known as location codes or plus codes.