Honda will be given the No 10 shirt when he arrives next month.
"Yes, now I can say it," Vice-President Adriano Galliani told Sky Sport Italia. "Honda is officially a Milan player. He will wear the No 10 jersey."
The midfielder will arrive on a free transfer from CSKA at the start of next month, but it may take some time to see him in action.
"He will be ours from January 3, but I don't know if he will play as soon as the 6th. If he is not ready at that point then he will play against Sassuolo on 12 January."
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