[nan60]

This is really cool. Japanese addresses are longer and more complex than most North American/European ones, so this especially makes sense there.

[SoftTalker]

Even in the USA, the full 9-digit "Zip + 4" code will often identify a specific building. And some really big customers (e.g. the IRS) will have their own 5-digit zip code.

[reaperducer]

Even in the USA, the full 9-digit "Zip + 4" code will often identify a specific building.

It can be even more granular than that. ZIP+4+2 is a thing.