Someone at Marriott squeezed enough that FT took down the 7-page listing of corp codes on the Marriott forum (luckily lots of folk had copied the thread first
). But heads up. Realize there aren't many codes listed on this thread, but you may want to copy down the ones that do exist. Of course Hilton doesn't check this forum that often & there aren't that many codes (and there probably aren't nasty employees like on Marriott acting as de facto police in their 'unofficial capacity), so this thread may stay up. But just in case.
Cheers.