Glenn Ashmore wrote:
Back in 2000 the FCC eliminated the "Amateur Advanced" license as an upgrade
but all the published band plans still have 3,700 to 3,800 on 80 meters,
14,175 to 14,225 on 40 meters and 21,225 to 21,275 on 15 meters reserved
for Advanced and Extra. Any idea why there is still a separate rule for
Advanced when they no longer exist?

Advanced class hams do exist. They can remain Advanced as long as they
renew their ticket or die if they don't want to upgrade to Extra class.
There just is no licensing for new Advanced class hams.

73 de w4ind