On 02/02/2010 00:24, Theo Markettos wrote:
In uk.telecom wrote:
I'd doubt it. It's (fairly) trivial to know what is on-net or
off-net...as opposed to knowing what network a number is actually on.

But since Virgin are a mobile telco too, they'll have a database of which
number is on which network. It 'just' requires plugging into the landline
billing infrastructure.

Theo

It's states that ported numbers will take up to 72 hours to be
recognised by Virginmedia.