A phone number can only be ported if the account related to that number is still active. If the account has been closed I am afraid that what you asking isn't possible. If the account was not in your name then it cannot be ported either.
I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more
Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks