Naples

CampaniaItaly

With a code: #J1CJD-648RD
Said aloud: Naples 648RD

What the code says

The Grid Point Code for Naples is #J1CJD-648RD. It names a cell 2.56 m north to south and 2.59 m east to west, centred on 40°51'07.80"N, 14°16'05.17"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 Naples, near its centre.

Code: #J1CJD-648RD
With a check character: #J1CJD-648RD*7
Short form: 648RD
Cell centre: 40.852166, 14.268104
Cell size: 2.56 m by 2.59 m
Region: Campania
Country: Italy
Population: 909,048

How to give this address

On a sign, a form or a delivery note: The whole code, #J1CJD-648RD. It needs nothing else: no city, no street, no network to read it back.
Said aloud, in Campania: Naples 648RD: 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 4.0 km east or west of Naples. 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: #J1CJD-648RD*7. 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 40.4 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.

J1CJMetropolitan area40 km by 40.4 km
J1CJDDistrict8 km by 8.08 km
J1CJD6Suburb1.6 km by 1.62 km
J1CJD64A few streets320 m by 323 m
J1CJD648Building64 m by 64.7 m
J1CJD648REntrance12.8 m by 12.9 m
J1CJD648RDDoorway2.56 m by 2.59 m

More in Italy

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