Mata-Utu

What the code says

The Grid Point Code for Mata-Utu is #DJD7P-HMKN2. It names a cell 2.56 m north to south and 3.33 m east to west, centred on 13°16'53.86"S, 176°10'28.25"W, 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 Mata-Utu, near its centre, and Mata-Utu is the capital of Wallis and Futuna.

Code

#DJD7P-HMKN2

With a check character

#DJD7P-HMKN2*2

Short form

HMKN2

Cell centre

-13.281627, -176.174515

Cell size

2.56 m by 3.33 m

Region

Uvea

Country

Wallis and Futuna

Population

1,200

How to give this address

On a sign, a form or a delivery note

The whole code, #DJD7P-HMKN2. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Uvea

Mata-Utu HMKN2: 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 5.2 km east or west of Mata-Utu. 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

#DJD7P-HMKN2*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 52 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. 7DJD7Metropolitan area40 km by 52 km
2. PDJD7PDistrict8 km by 10.4 km
3. HDJD7PHSuburb1.6 km by 2.08 km
4. MDJD7PHMA few streets320 m by 416 m
5. KDJD7PHMKBuilding64 m by 83.2 m
6. NDJD7PHMKNEntrance12.8 m by 16.6 m
7. 2DJD7PHMKN2Doorway2.56 m by 3.33 m