Kostroma

Kostroma OblastRussia

With a code: #PMF0D-8DLP9
Said aloud: Kostroma 8DLP9

What the code says

The Grid Point Code for Kostroma is #PMF0D-8DLP9. It names a cell 2.56 m north to south and 1.82 m east to west, centred on 57°45'58.98"N, 40°55'41.78"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 Kostroma, near its centre.

Code: #PMF0D-8DLP9
With a check character: #PMF0D-8DLP9*7
Short form: 8DLP9
Cell centre: 57.766383, 40.928271
Cell size: 2.56 m by 1.82 m
Region: Kostroma Oblast
Country: Russia
Population: 277,280

How to give this address

On a sign, a form or a delivery note: The whole code, #PMF0D-8DLP9. It needs nothing else: no city, no street, no network to read it back.
Said aloud, in Kostroma Oblast: Kostroma 8DLP9: 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 2.8 km east or west of Kostroma. 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: #PMF0D-8DLP9*7. 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 28.5 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.

PMF0Metropolitan area40 km by 28.5 km
PMF0DDistrict8 km by 5.7 km
PMF0D8Suburb1.6 km by 1.14 km
PMF0D8DA few streets320 m by 228 m
PMF0D8DLBuilding64 m by 45.6 m
PMF0D8DLPEntrance12.8 m by 9.12 m
PMF0D8DLP9Doorway2.56 m by 1.82 m

More in Russia

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