Grid Point Code

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Apliu Street

Sham Shui Po DistrictHong Kong

Without a code
Apliu Street, and then directions
With a code
#KHFF4-19XP8
Said aloud
Apliu Street 19XP8

This code is one spot in Apliu Street, a cell 2.56 m by 3.16 m. Every stall front and doorway in it has a code of its own.

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What the code says

The Grid Point Code for Apliu Street is #KHFF4-19XP8. It names a cell 2.56 m north to south and 3.16 m east to west, centred on 22°19'43.40"N, 114°09'50.12"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
Street in Sham Shui Po
Code
#KHFF4-19XP8
With a check character
#KHFF4-19XP8*W
Short form
19XP8
Cell centre
22.328721, 114.163922
Cell size
2.56 m by 3.16 m
Region
Sham Shui Po District
Country
Hong Kong

How to give this address

On a sign, a form or a delivery note

The whole code, #KHFF4-19XP8. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Sham Shui Po District

Apliu Street 19XP8: 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 4.9 km east or west of Apliu Street. 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

#KHFF4-19XP8*W. 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 49.4 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. KHFFMetropolitan area40 km by 49.4 km
  2. KHFF4District8 km by 9.89 km
  3. KHFF41Suburb1.6 km by 1.98 km
  4. KHFF419A few streets320 m by 395 m
  5. KHFF419XBuilding64 m by 79.1 m
  6. KHFF419XPEntrance12.8 m by 15.8 m
  7. KHFF419XP8Doorway2.56 m by 3.16 m

More in Hong Kong

Place and region from Wikidata, described on Wikipedia.