What might one learn from reception of Space 1999 ? (4,6)

I believe the answer is:

room number

'what might one learn from reception' is the definition.
(a hotel reception might give you a room number)

'space 1999 ?' is the wordplay.
'space' becomes 'room' (room is a kind of space).
'1999 ?' becomes 'number' (1999 is an example).
'room'+'number'='ROOM NUMBER'

'of' acts as a link.

I've seen this clue in The Independent.

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