No. Judas is not the antichrist, he is a type of the antichrist. That means the Antichrist is not going to be an opposer from the outside, but is going to be a deceiver from the inside which is how the Antichrist will deceive many. I have started watching a series on the book of revelation that really breaks things down thoroughly. If you have patience and an interest in this book I really recommend that you check it out. If you will like to see it let me know and I will give you the link.