Ferdinand, who has 81 caps, was snubbed by new boss Roy Hodgson for his Euro 2012 squad.
But he told The Sun: "I said that if I was not playing in the summer, I did not see myself playing in the future.
"But I would never retire from international football. I will always be available but my main focus is playing for Manchester United.
"I won't be miffed if I'm not in the England squad because I don't see myself being part of it any more.
"It's gone, this is a new season, that has happened.
"The Euros is finished, England played the way they did and the tournament has finished."