| Change Code | Description |
|---|---|
| 1 | incorporation |
| 2 | change of name |
| 2C | correction of name |
| 23 | change of name and type |
| 3 | change of type |
| 3C | correction of type |
| 4 | dissolution |
| 5A | complete annexation of the former entity |
| 6 | part incorporated from the former entity |
| 7 | revision of SGC code |
| * | denotes "part of" |
| ** | new entity from 2001, updated in its creation year |
| *** | new entity from 2001, updated after its creation year |