The ARRL, in honor of Hiram Percy Maxim is. Well, Tomorrow as I type. (Starts at 0000Z) those who either hold ARRL office or who are life members will be adding /140 to their call sign,
There are certificates for those who work 25 or more (in 25 contact increments) /140 stations.
So, I'll be WA8YXM/140 tonight and tomorrow, Life Member, John. and folks you are all 599 here on the internet.
(Too bad this does not count)
http://www.arrl.org/news/stories/2009/08/17/11025/