Grid Point Code

Play

Tanga

Tanzania

With a code
#81GWT-D1XJX
Said aloud
Tanga D1XJX

Get the code for your door

What the code says

The Grid Point Code for Tanga is #81GWT-D1XJX. It names a cell 2.56 m north to south and 3.41 m east to west, centred on 5°04'08.14"S, 39°05'55.47"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 Tanga, near its centre.

Code
#81GWT-D1XJX
With a check character
#81GWT-D1XJX*3
Short form
D1XJX
Cell centre
-5.068927, 39.098742
Cell size
2.56 m by 3.41 m
Country
Tanzania
Population
393,429

How to give this address

On a sign, a form or a delivery note

The whole code, #81GWT-D1XJX. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Tanzania

Tanga D1XJX: 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 Tanga. 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

#81GWT-D1XJX*3. 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 53.2 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. 81GWMetropolitan area40 km by 53.2 km
  2. 81GWTDistrict8 km by 10.6 km
  3. 81GWTDSuburb1.6 km by 2.13 km
  4. 81GWTD1A few streets320 m by 426 m
  5. 81GWTD1XBuilding64 m by 85.2 m
  6. 81GWTD1XJEntrance12.8 m by 17 m
  7. 81GWTD1XJXDoorway2.56 m by 3.41 m

More in Tanzania

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