Indianapolis Colts owner Jim Irsay was recently offered $3.2 billion for his team, the team confirmed Wednesday. A team spokesperson told IndyStar the team is not for sale.

The offer was nearly $1 billion more than the $2.3 billion the Carolina Panthers sold for last year and more than double what the Buffalo Bills sold for in 2014.

On Wednesday, Forbes.com released its annual estimated values of all 32 NFL teams, with the Colts slotting in at No. 20 at $2.65 billion, an 11% increase from the organization's list last year.

Forbes has the Panthers valued at $2.4 billion (22nd) and the Bills at $1.9 billion (32nd).

Irsay's daughters, Carlie Irsay-Gordon, Casey Foyt and Kalen Irsay, are all listed as vice chair/owner.

The Dallas Cowboys are ranked No. 1 at $5.5 billion, New England No. 2 at $4.1 billion and the New York Giants No. 3 at $3.9 billion.

Jim Irsay added the following on Thursday.

Contact IndyStar Deputy Sports Editor Nat Newell at 317-444-6182 or nat.newell@indystar.com. Follow him on Twitter: @NatJNewell.