Actually, I though it was A9 and A11 (and maybe A7) that were connected to FIS as that is where I see CO67 and the USA3000 jets parked upon arrival.

http://www.clevelandairport.com/site/511/Default.aspx

I believe that US and HP combined gates on the north side of A in gates 8, 10 & 12.

Rumor has it that NW will be moving over to the south side of A to free up additional gates for CO in Concourse C.