USF and Pitt are tied for No. 24. No. 17 Stanford, No. 19 Virginia Tech, No. 20 Navy and No. 22 Iowa also entered the rankings in the second-to-last regular-season poll.
This is the fourth time six teams entered the rankings in one week since 1989, when the AP poll expanded to include 25 teams. It's the latest in a season that this many teams were new to the Top 25.
Eleven ranked teams lost during Thanksgiving weekend, five to unranked teams. That's the most ranked teams to lose in a single week since Oct. 4, 2014.
Utah, Houston, Boise State, Texas A&M, Washington State and Tennessee fell out of the poll with losses.
Alabama remained a unanimous No. 1, and Ohio State was No. 2. Clemson moved up a spot to No. 3, and Washington jumped two to No. 4. Michigan dropped two places to fifth after its double-overtime loss to Ohio State.
No. 6 Wisconsin was followed by Oklahoma, Penn State, Colorado and USC.
The Big Ten leads the way with six ranked teams, while the ACC has five and the SEC and Pac-12 each have four.
Top-5 shuffle, slew of newcomers in AP Top 25 update
Ohio State's dramatic, double-overtime win over Michigan in The Game reorders the top of the AP poll. Meanwhile, Virginia Tech and Navy joined the party after lopsided wins Saturday.