Reserved extension numbers
This is the list of reserved numbers which don't have or need their own wiki page:
| extension | reserved for/owned by |
|---|---|
| 1006 | ACKspace member |
| 102x"x" can not be assigned to a declared number type with value 102. | Ruimte B |
| 103x"x" can not be assigned to a declared number type with value 103. | Ruimte B |
