Sanaa

What the code says

The Grid Point Code for Sanaa is #JKMF9-77C2L. It names a cell 2.56 m north to south and 3.30 m east to west, centred on 15°21'16.25"N, 44°12'23.27"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 Sanaa, near its centre, and Sanaa is the capital of Yemen.

Code

#JKMF9-77C2L

With a check character

#JKMF9-77C2L*G

Short form

77C2L

Cell centre

15.354513, 44.206464

Cell size

2.56 m by 3.30 m

Region

Amanat Alasimah

Country

Yemen

Population

1,937,451

How to give this address

On a sign, a form or a delivery note

The whole code, #JKMF9-77C2L. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Amanat Alasimah

Sanaa 77C2L: 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 5.2 km east or west of Sanaa. 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

#JKMF9-77C2L*G. 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 51.5 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. FJKMFMetropolitan area40 km by 51.5 km
2. 9JKMF9District8 km by 10.3 km
3. 7JKMF97Suburb1.6 km by 2.06 km
4. 7JKMF977A few streets320 m by 412 m
5. CJKMF977CBuilding64 m by 82.4 m
6. 2JKMF977C2Entrance12.8 m by 16.5 m
7. LJKMF977C2LDoorway2.56 m by 3.3 m

More in Yemen

• Aden
• Taiz
• Ibb
• Al Ḩudaydah
• Mukalla
• Socotra