Grid Point Code

Play

Ōita

OitaJapan

With a code
#L99HN-HP5JJ
Said aloud
Ōita HP5JJ

Get the code for your door

What the code says

The Grid Point Code for Ōita is #L99HN-HP5JJ. It names a cell 2.56 m north to south and 2.86 m east to west, centred on 33°13'59.96"N, 131°36'00.04"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 Ōita, near its centre.

Code
#L99HN-HP5JJ
With a check character
#L99HN-HP5JJ*J
Short form
HP5JJ
Cell centre
33.233322, 131.600010
Cell size
2.56 m by 2.86 m
Region
Oita
Country
Japan
Population
477,715

How to give this address

On a sign, a form or a delivery note

The whole code, #L99HN-HP5JJ. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Oita

Ōita HP5JJ: 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 Ōita. 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

#L99HN-HP5JJ*J. 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 44.7 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. L99HMetropolitan area40 km by 44.7 km
  2. L99HNDistrict8 km by 8.94 km
  3. L99HNHSuburb1.6 km by 1.79 km
  4. L99HNHPA few streets320 m by 358 m
  5. L99HNHP5Building64 m by 71.5 m
  6. L99HNHP5JEntrance12.8 m by 14.3 m
  7. L99HNHP5JJDoorway2.56 m by 2.86 m

More in Japan

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