Grid Point Code

Play

Cixi

ZhejiangChina

With a code
#L9J72-4HTCP
Said aloud
Cixi 4HTCP

Get the code for your door

What the code says

The Grid Point Code for Cixi is #L9J72-4HTCP. It names a cell 2.56 m north to south and 2.96 m east to west, centred on 30°10'35.03"N, 121°14'44.56"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 Cixi, near its centre.

Code
#L9J72-4HTCP
With a check character
#L9J72-4HTCP*6
Short form
4HTCP
Cell centre
30.176398, 121.245711
Cell size
2.56 m by 2.96 m
Region
Zhejiang
Country
China
Population
1,457,510

How to give this address

On a sign, a form or a delivery note

The whole code, #L9J72-4HTCP. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Zhejiang

Cixi 4HTCP: 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 Cixi. 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

#L9J72-4HTCP*6. 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 46.2 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. L9J7Metropolitan area40 km by 46.2 km
  2. L9J72District8 km by 9.24 km
  3. L9J724Suburb1.6 km by 1.85 km
  4. L9J724HA few streets320 m by 370 m
  5. L9J724HTBuilding64 m by 73.9 m
  6. L9J724HTCEntrance12.8 m by 14.8 m
  7. L9J724HTCPDoorway2.56 m by 2.96 m

More in China

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