Grid Point Code
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Dappermarkt

AmsterdamNorth HollandNetherlands

Grid Point Code for Dappermarkt
Without a code
Dappermarkt, Amsterdam, and then directions
With a code
#PX2XG-8M864
Said aloud
Dappermarkt 8M864

This code is one spot in Dappermarkt, a cell 2.56 m by 2.09 m. Every stall front and doorway in it has a code of its own.

Get the code for your door

What the code says

The Grid Point Code for Dappermarkt is #PX2XG-8M864. It names a cell 2.56 m north to south and 2.09 m east to west, centred on 52°21'43.97"N, 4°55'40.01"E, and it turns back into that cell on any phone or computer by arithmetic alone: no network, no account, no lookup table.

What it is
Market in Amsterdam, Netherlands
Code
#PX2XG-8M864
With a check character
#PX2XG-8M864*N
Short form
8M864
Cell centre
52.362213, 4.927780
Cell size
2.56 m by 2.09 m
City
Amsterdam
Region
North Holland
Country
Netherlands

How to give this address

On a sign, a form or a delivery note

The whole code, #PX2XG-8M864. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Amsterdam

Dappermarkt 8M864: 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 3.3 km east or west of Dappermarkt. 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

#PX2XG-8M864*N. 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 32.6 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. PX2XMetropolitan area40 km by 32.6 km
  2. PX2XGDistrict8 km by 6.53 km
  3. PX2XG8Suburb1.6 km by 1.31 km
  4. PX2XG8MA few streets320 m by 261 m
  5. PX2XG8M8Building64 m by 52.2 m
  6. PX2XG8M86Entrance12.8 m by 10.4 m
  7. PX2XG8M864Doorway2.56 m by 2.09 m

More in Netherlands

Place and region from Wikidata, described on Wikipedia; city from GeoNames, under CC BY 4.0.