Not always
But while you can keep your number when moving from any provider TO Virgin, if you try switching from Virgin/Cable back to BT or Sky etc you'll get told no, can't do it.
Happened to me and lot's of people I know on several occasions.
"But you have the right to keep your number!" you say...
Uh huh, try telling that to the providers, they'll flat out tell you it's not possible when you move back from cable.
Biting the hand that feeds IT
