"The 8888 room (lounge) is a little like a mini RCC that caters to full-fare F passengers on the "premium" SFO-JFK route."
Actually any trans-con full fare F (or XF) gains you access to the 8888 room at SFO. SFO-IAD, SFO-PHL etc. And the numbering is not unique to SFO. They keep the numbering systemwide.