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
1002	patchroom 2nd floor
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