The NIS code (Dutch: NIS-code, French: code INS) is a numeric code for regional areas of Belgium.
This code is used for statistical data treatment in Belgium. This code was developed mid-1960s by the Statistics Belgium. It was first used for the census of 1970.
The NIS code consists of 5 digits:
40000: Province East Flanders
32000: Arrondissement of Diksmuide
73032: municipality Hoeselt
61012: municipality Clavier
23105: municipality Affligem
71022E: municipality part Stokrooie