Grid Point Code

Play

Persepolis

near MarvdashtFars ProvinceIran

With a code
#J5L9X-JRTHC
Said aloud
Persepolis JRTHC

Open in the playground

What the code says

The Grid Point Code for Persepolis is #J5L9X-JRTHC. It names a cell 2.56 m north to south and 2.96 m east to west, centred on 29°56'06.03"N, 52°53'23.98"E, and it turns back into that cell on any phone or computer by arithmetic alone: no network, no account, no lookup table.

What it is
Ancient city in Marvdasht County, Iranian national heritage site and World heritage site
Code
#J5L9X-JRTHC
With a check character
#J5L9X-JRTHC*9
Short form
JRTHC
Cell centre
29.935008, 52.889994
Cell size
2.56 m by 2.96 m
Region
Fars Province
Country
Iran

How to give this address

On a sign, a form or a delivery note

The whole code, #J5L9X-JRTHC. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Fars Province

Persepolis JRTHC: 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 4.6 km east or west of Persepolis. 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

#J5L9X-JRTHC*9. 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 46.3 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. J5L9Metropolitan area40 km by 46.3 km
  2. J5L9XDistrict8 km by 9.26 km
  3. J5L9XJSuburb1.6 km by 1.85 km
  4. J5L9XJRA few streets320 m by 370 m
  5. J5L9XJRTBuilding64 m by 74.1 m
  6. J5L9XJRTHEntrance12.8 m by 14.8 m
  7. J5L9XJRTHCDoorway2.56 m by 2.96 m

More in Iran

Place and region from Wikidata, described on Wikipedia; nearby town from GeoNames, under CC BY 4.0.