EY space
JFK
In the past with 777 and 380
Same day space opens up 331 days ahead; opened up only on the 777
We were checking hourly for a friend going for wedding
Opens up at 9-10 AM AUH time, by the way
Now - A380 rarely open - unless expertflyer shows lots of unsold space
Blocking done by EY to JFK
IAD
The space here is open most days on EY website for partner awards
I can tell you after many trips the 787 F class is a bad product with very limited storage space and not even the same as the A340 - much better space and lavs, but gas guzzler.
AA is blocking this space for a while, esp in F class and business class