Non-Geographic Number - Good Call

In the United Kingdom, non-geographic numbers (NGNs) are telephone numbers available for private sale which, rather than being assigned to a particular telephone line or circuit, provide callers with a contact number which gives no indication as to the geographical location of the line being called.

The owner of the number can retarget the NGN to any other telephone number including mobile, international and even other NGNs at any time therefore enabling them to take their calls on the move or at various locations at different times or simultaneously.

NGNs which cost more than 50p (UK) to call are classed as premium rate numbers and usually begin '09'.