Szczecin

What the code says

The Grid Point Code for Szczecin is #PWW5D-25ND1. It names a cell 2.56 m north to south and 2.04 m east to west, centred on 53°25'44.19"N, 14°33'10.92"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 Szczecin, near its centre.

Code

#PWW5D-25ND1

With a check character

#PWW5D-25ND1*8

Short form

25ND1

Cell centre

53.428942, 14.553032

Cell size

2.56 m by 2.04 m

Region

West Pomerania

Country

Poland

Population

395,513

How to give this address

On a sign, a form or a delivery note

The whole code, #PWW5D-25ND1. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in West Pomerania

Szczecin 25ND1: 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 3.2 km east or west of Szczecin. 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

#PWW5D-25ND1*8. 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 31.8 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. 5PWW5Metropolitan area40 km by 31.8 km
2. DPWW5DDistrict8 km by 6.37 km
3. 2PWW5D2Suburb1.6 km by 1.27 km
4. 5PWW5D25A few streets320 m by 255 m
5. NPWW5D25NBuilding64 m by 50.9 m
6. DPWW5D25NDEntrance12.8 m by 10.2 m
7. 1PWW5D25ND1Doorway2.56 m by 2.04 m

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