If red it is gone for ever, if green there may be a remote chance for you to sign up for a new Virgin media broadband account and request a Move and Transfer of the ntlworld address to your new account.
I can't stress enough that the chance is remote.
_________________________________________________________ Graham I am a VM customer. There are no guarantees that my advice will work.
As a Very Insightful Person, I'm here to share my knowledge. I don't work for Virgin Media.