Bratislava

What the code says

The Grid Point Code for Bratislava is #PW7NM-NN4FN. It names a cell 2.56 m north to south and 2.28 m east to west, centred on 48°08'53.34"N, 17°06'24.32"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 Bratislava, near its centre, and Bratislava is the capital of Slovakia.

Code

#PW7NM-NN4FN

With a check character

#PW7NM-NN4FN*D

Short form

NN4FN

Cell centre

48.148151, 17.106755

Cell size

2.56 m by 2.28 m

Region

Bratislava Region

Country

Slovakia

Population

423,737

How to give this address

On a sign, a form or a delivery note

The whole code, #PW7NM-NN4FN. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Bratislava Region

Bratislava NN4FN: 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 3.6 km east or west of Bratislava. 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

#PW7NM-NN4FN*D. 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 35.7 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.

1. NPW7NMetropolitan area40 km by 35.7 km
2. MPW7NMDistrict8 km by 7.13 km
3. NPW7NMNSuburb1.6 km by 1.43 km
4. NPW7NMNNA few streets320 m by 285 m
5. 4PW7NMNN4Building64 m by 57 m
6. FPW7NMNN4FEntrance12.8 m by 11.4 m
7. NPW7NMNN4FNDoorway2.56 m by 2.28 m

More in Slovakia

• Slovak Paradise National Park
• Dobšiná Ice Cave