Grid Point Code

Play

Kochi

Japan

With a code
#L8JKX-XX8F8
Said aloud
Kochi XX8F8

Get the code for your door

What the code says

The Grid Point Code for Kochi is #L8JKX-XX8F8. It names a cell 2.56 m north to south and 2.85 m east to west, centred on 33°33'00.03"N, 133°32'00.03"E, and it turns back into that cell on any phone or computer by arithmetic alone: no network, no account, no lookup table.

The point used is the one GeoNames records for Kochi, near its centre.

Code
#L8JKX-XX8F8
With a check character
#L8JKX-XX8F8*2
Short form
XX8F8
Cell centre
33.550007, 133.533343
Cell size
2.56 m by 2.85 m
Country
Japan
Population
332,059

How to give this address

On a sign, a form or a delivery note

The whole code, #L8JKX-XX8F8. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Japan

Kochi XX8F8: a name both people know, then the last five characters. They give back the exact code for anywhere within 4.0 km north or south and 4.5 km east or west of Kochi. Further away the same five name somewhere else, which is why the whole code is what goes on a sign.

Copied by hand, or read over a phone

#L8JKX-XX8F8*2. The character on the end catches any single mistyped symbol and any two neighbours swapped.

As a link or a square code

Open it on the map, move to the exact door, and add directions if the code needs help: "blue gate, second floor". The link and the square code carry them. Nothing is kept on this site.

From the city to the door

The first four characters name a cell about 40 km by 44.5 km here. Each one after that picks one of 25 inside the last, so the whole ten name a spot about the size of a doorway.

  1. L8JKMetropolitan area40 km by 44.5 km
  2. L8JKXDistrict8 km by 8.91 km
  3. L8JKXXSuburb1.6 km by 1.78 km
  4. L8JKXXXA few streets320 m by 356 m
  5. L8JKXXX8Building64 m by 71.3 m
  6. L8JKXXX8FEntrance12.8 m by 14.3 m
  7. L8JKXXX8F8Doorway2.56 m by 2.85 m

More in Japan

City, region and population from GeoNames, under CC BY 4.0.