ESPN College Extra

Channels 614 though 621 carried the service from ESPN called College Extra.  I noticed today that they are all gone.  I can't seem to find any explanation as to what happened to them.  They were available to higher level services including the sports package.  They haven't actively carried programming that frequently in the past and primarily are active during the college football season.  Maybe they will re-activate in the fall, but whatever the reason it would be nice to know why.