Köln
North Rhine-WestphaliaGermany
- With a code
#PX7JF-DXX28- Said aloud
- Köln
DXX28
What the code says
The Grid Point Code for Köln is #PX7JF-DXX28. It names a cell 2.56 m north to south and 2.16 m east to west, centred on 50°56'00.03"N, 6°56'59.95"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 Köln, near its centre.
- Code
#PX7JF-DXX28- With a check character
#PX7JF-DXX28*F- Short form
DXX28- Cell centre
- 50.933341, 6.949985
- Cell size
- 2.56 m by 2.16 m
- Region
- North Rhine-Westphalia
- Country
- Germany
- Population
- 1,024,621
How to give this address
- On a sign, a form or a delivery note
The whole code,
#PX7JF-DXX28. It needs nothing else: no city, no street, no network to read it back.- Said aloud, in North Rhine-Westphalia
Köln DXX28: 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 3.4 km east or west of Köln. 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
#PX7JF-DXX28*F. 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 33.7 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.
- PX7JMetropolitan area40 km by 33.7 km
- PX7JFDistrict8 km by 6.73 km
- PX7JFDSuburb1.6 km by 1.35 km
- PX7JFDXA few streets320 m by 269 m
- PX7JFDXXBuilding64 m by 53.9 m
- PX7JFDXX2Entrance12.8 m by 10.8 m
- PX7JFDXX28Doorway2.56 m by 2.16 m
More in Germany
City, region and population from GeoNames, under CC BY 4.0.