Blanc took over from Domenech after France's embarrassing first-round exit from the World Cup in South Africa.
"He knows me very well, as a player and as a person," Trezeguet, who has not played with Les Bleus since a 1-0 friendly win over England in 2008, told sports daily L'Equipe.
"If he needs me, I am here. If 'Lolo' calls me, I'm coming right away," added Trezeguet, who had a tense relationship with Domenech.
The 32-year-old striker, who won the 1998 World Cup with Blanc and scored the golden goal that earned France the Euro 2000 title, believes age is not a problem.
"If Louis Saha, who is 32, has been called up I think there is a possibility for all of us. The fact that Domenech is not the coach anymore changes a lot of things for me."
Trezeguet, who earned 71 caps and scored 34 goals, left Italy after a 10-year spell with Juventus to join promoted La Liga side Hercules Alicante.
"Lazio and Liverpool were interested... but after 10 years in Turin, I needed the sea and the sun. And the fact that my wife is from the region also played a part in my decision," said Trezeguet.
Laurent Blanc is set to name his squad for France's next two Euro qualifiers on September 30.
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