Grid Point Code

Play

Cuautitlán Izcalli

MéxicoMexico

With a code
#GD33D-T2LTM
Said aloud
Cuautitlán Izcalli T2LTM

Get the code for your door

What the code says

The Grid Point Code for Cuautitlán Izcalli is #GD33D-T2LTM. It names a cell 2.56 m north to south and 3.22 m east to west, centred on 19°38'37.93"N, 99°12'57.49"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 Cuautitlán Izcalli, near its centre.

Code
#GD33D-T2LTM
With a check character
#GD33D-T2LTM*R
Short form
T2LTM
Cell centre
19.643869, -99.215969
Cell size
2.56 m by 3.22 m
Region
México
Country
Mexico
Population
555,163

How to give this address

On a sign, a form or a delivery note

The whole code, #GD33D-T2LTM. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in México

Cuautitlán Izcalli T2LTM: 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 5.0 km east or west of Cuautitlán Izcalli. 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

#GD33D-T2LTM*R. 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 50.3 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. GD33Metropolitan area40 km by 50.3 km
  2. GD33DDistrict8 km by 10.1 km
  3. GD33DTSuburb1.6 km by 2.01 km
  4. GD33DT2A few streets320 m by 403 m
  5. GD33DT2LBuilding64 m by 80.5 m
  6. GD33DT2LTEntrance12.8 m by 16.1 m
  7. GD33DT2LTMDoorway2.56 m by 3.22 m

More in Mexico

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