Already 27,000 seats have been filled for the match in which midfielder Jermaine Wright will return to Portman Road and the club could be heading for it's first sell-out of the season.
Speaking to the Official Club Website Town ticket office manager John Ford confirmed: "It's the biggest selling game of the season here so far.
"We have sold close on 27,000 tickets and the phones have been busy all week. We will be closing in on a sell-out if the rate of interest continues."