Malang

What the code says

The Grid Point Code for Malang is #7P3C1-10JJ5. It names a cell 2.56 m north to south and 3.39 m east to west, centred on 7°58'46.95"S, 112°37'49.48"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 Malang, near its centre.

Code

#7P3C1-10JJ5

With a check character

#7P3C1-10JJ5*G

Short form

10JJ5

Cell centre

-7.979708, 112.630410

Cell size

2.56 m by 3.39 m

Region

East Java

Country

Indonesia

Population

889,359

How to give this address

On a sign, a form or a delivery note

The whole code, #7P3C1-10JJ5. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in East Java

Malang 10JJ5: 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 5.3 km east or west of Malang. 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

#7P3C1-10JJ5*G. 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 52.9 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. C7P3CMetropolitan area40 km by 52.9 km
2. 17P3C1District8 km by 10.6 km
3. 17P3C11Suburb1.6 km by 2.12 km
4. 07P3C110A few streets320 m by 423 m
5. J7P3C110JBuilding64 m by 84.7 m
6. J7P3C110JJEntrance12.8 m by 16.9 m
7. 57P3C110JJ5Doorway2.56 m by 3.39 m

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