Grid Point Code

Play

Zanjan

Iran

With a code
#J4PMX-9PWJ5
Said aloud
Zanjan 9PWJ5

Get the code for your door

What the code says

The Grid Point Code for Zanjan is #J4PMX-9PWJ5. It names a cell 2.56 m north to south and 2.74 m east to west, centred on 36°40'35.11"N, 48°29'46.56"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 Zanjan, near its centre.

Code
#J4PMX-9PWJ5
With a check character
#J4PMX-9PWJ5*X
Short form
9PWJ5
Cell centre
36.676420, 48.496266
Cell size
2.56 m by 2.74 m
Country
Iran
Population
357,471

How to give this address

On a sign, a form or a delivery note

The whole code, #J4PMX-9PWJ5. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Iran

Zanjan 9PWJ5: 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 4.3 km east or west of Zanjan. 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

#J4PMX-9PWJ5*X. 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 42.9 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. J4PMMetropolitan area40 km by 42.9 km
  2. J4PMXDistrict8 km by 8.57 km
  3. J4PMX9Suburb1.6 km by 1.71 km
  4. J4PMX9PA few streets320 m by 343 m
  5. J4PMX9PWBuilding64 m by 68.6 m
  6. J4PMX9PWJEntrance12.8 m by 13.7 m
  7. J4PMX9PWJ5Doorway2.56 m by 2.74 m

More in Iran

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