When I was a customer they talked about the closest exchanges to me being Newland and Greenwood.
Not newland there isnt one there, Its queens road, the big glass building on the left, can even see the server type boxes through the glass panels nearest the road.
That's what their tech team said, multiple people too on different occasions.. I suppose it would be them not giving the game away as to exactly where the exchanges are maybe? Given how close Newland Ave and Queens Road are that would make sense.