Originally Posted by
ACYYZ/SD
The numeric portion referred to the actual desk podium in the departures lounge in the US area (92, 93, 94, etc). The alpha portion referred to the actual bridge through which the aircraft was parked (Q, R, S, etc). In other words, the flight was controlled through the transborder area, while in actuality it could be parked and gated in the international section.
Hope this is clear.
Where do you get your information from? Do you have anything such as a terminal layout?