The Middle Earth is a large world...
To prevent chaos, I decide to divide the world into "Continents", "Lands", "Regions", Districts and Counties.
All counties have a number code, and from it it can be guessed where the county is.
So:
Here is a short overview of the numerical system:
0**** Northwestern Middle Earth[]
00*** Lindon[]
01*** Eriador[]
010**Arthedain[]
011** Cardolan[]
012**Rhudaur[]
013**Angmar[]
014**Forochel[]
015** Eregion[]
016**Dunland[]
017**Enedwaith[]
018**Hithaeglir[]
02***Gondor[]
020**Anórien[]
021**Ithilien[]
022**Lebennin[]
023**Belfalas[]
024**Lamedon[]
025**Rohan[]
026**Anfalas[]
027**Andrast[]
03***Rhovanion[]
030**Lórien[]
031**Nan Anduin[]
032**Mirkwood[]
033**Grey Mts, Erebor and Iron Hills[]
034** Barding Reach+ Gramavuld[]
035** Ehwathrumavuld[]
036** Dorwinion[]
037** Sagathavuld[]
038** Dor Rhúnen[]
04*** Mordor[]
040**Gorgoroth[]
041**Udún[]
042**Nurn[]