Grid Point Code

Play

Genoa

LiguriaItaly

With a code
#J03KM-NN863
Said aloud
Genoa NN863

Get the code for your door

What the code says

The Grid Point Code for Genoa is #J03KM-NN863. It names a cell 2.56 m north to south and 2.44 m east to west, centred on 44°24'17.18"N, 8°56'39.80"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 Genoa, near its centre.

Code
#J03KM-NN863
With a check character
#J03KM-NN863*H
Short form
NN863
Cell centre
44.404773, 8.944389
Cell size
2.56 m by 2.44 m
Region
Liguria
Country
Italy
Population
580,097

How to give this address

On a sign, a form or a delivery note

The whole code, #J03KM-NN863. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Liguria

Genoa NN863: 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 3.8 km east or west of Genoa. 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

#J03KM-NN863*H. 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 38.2 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. J03KMetropolitan area40 km by 38.2 km
  2. J03KMDistrict8 km by 7.63 km
  3. J03KMNSuburb1.6 km by 1.53 km
  4. J03KMNNA few streets320 m by 305 m
  5. J03KMNN8Building64 m by 61.1 m
  6. J03KMNN86Entrance12.8 m by 12.2 m
  7. J03KMNN863Doorway2.56 m by 2.44 m

More in Italy

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