Vientiane

What the code says

The Grid Point Code for Vientiane is #K621R-G6DRM. It names a cell 2.56 m north to south and 3.25 m east to west, centred on 17°58'00.02"N, 102°35'59.97"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 Vientiane, near its centre, and Vientiane is the capital of Laos.

Code

#K621R-G6DRM

With a check character

#K621R-G6DRM*9

Short form

G6DRM

Cell centre

17.966673, 102.599992

Cell size

2.56 m by 3.25 m

Region

Vientiane Prefecture

Country

Laos

Population

840,940

How to give this address

On a sign, a form or a delivery note

The whole code, #K621R-G6DRM. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Vientiane Prefecture

Vientiane G6DRM: 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 5.1 km east or west of Vientiane. 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

#K621R-G6DRM*9. 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 50.8 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. 1K621Metropolitan area40 km by 50.8 km
2. RK621RDistrict8 km by 10.2 km
3. GK621RGSuburb1.6 km by 2.03 km
4. 6K621RG6A few streets320 m by 407 m
5. DK621RG6DBuilding64 m by 81.3 m
6. RK621RG6DREntrance12.8 m by 16.3 m
7. MK621RG6DRMDoorway2.56 m by 3.25 m

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