From the Enquirer
The University of Cincinnati was allotted 4,000 tickets for its Sept. 27 football game at Ohio State and all are gone, UC athletic director Mike Bohn said Tuesday.
As is the case with every away game the Bearcats allotment is first routed to season ticket holders/UCats Members. If there are any left over after those groups have their fill they move on to the general public. It is not that surprising that this particular allotment sold out without even being offered to the public. I would expect the number of Bearcats in attendance to far outnumber the allotment from Ohio State. Close to 5,000 made the trek to Columbus the last time the Bearcats headed to Ohio Stadium in 2006. It wouldn't be a shock if close to double that made the journey in 2014.
If you are interested there are still tickets available from the Ohio State website, as well as secondary exchanges like StubHub.