Grid Point Code

Play

Ciudad Juárez

ChihuahuaMexico

With a code
#G8HMR-CNPX7
Said aloud
Ciudad Juárez CNPX7

Get the code for your door

What the code says

The Grid Point Code for Ciudad Juárez is #G8HMR-CNPX7. It names a cell 2.56 m north to south and 2.91 m east to west, centred on 31°43'12.86"N, 106°27'39.06"W, 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 Ciudad Juárez, near its centre.

Code
#G8HMR-CNPX7
With a check character
#G8HMR-CNPX7*N
Short form
CNPX7
Cell centre
31.720239, -106.460851
Cell size
2.56 m by 2.91 m
Region
Chihuahua
Country
Mexico
Population
1,512,450

How to give this address

On a sign, a form or a delivery note

The whole code, #G8HMR-CNPX7. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Chihuahua

Ciudad Juárez CNPX7: 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 4.5 km east or west of Ciudad Juárez. 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

#G8HMR-CNPX7*N. 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 45.5 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. G8HMMetropolitan area40 km by 45.5 km
  2. G8HMRDistrict8 km by 9.09 km
  3. G8HMRCSuburb1.6 km by 1.82 km
  4. G8HMRCNA few streets320 m by 364 m
  5. G8HMRCNPBuilding64 m by 72.7 m
  6. G8HMRCNPXEntrance12.8 m by 14.5 m
  7. G8HMRCNPX7Doorway2.56 m by 2.91 m

More in Mexico

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