Precise - Navi address is more accurate then a postal address and is not as complicated as coordinates.
Simple - Typically from 4 to 6 digits for a precise location.
Functional - Well known telephone country and city codes are used to identify regions and areas.
Cross-cultural - Numbers are easily recognized in any country, culture, language.
You can search existing Naviaddresses, assign new ones, add them to Favorites and share with your friends.
If you want a shorter Naviaddress - you can buy Premium Naviaddress - 4 or 5 digits.