BCP 38 coverage if top x providers ...

["Frank Bulk" <frnkblk () iname com>]

My google fu is failing me, but I believe there was a NANOG posting a year
or two ago that mentioned that if the top x providers would implement BCP 38
then y% of the traffic (or Internet) would be de-spoofed.  The point was
that we don't even need everyone to implement BCP 38, but if the largest
(transit?) providers did it, then UDP reflection attacks could be minimized.

If someone can recall the key words in that posting and dig it up, that
would be much appreciated.

Frank