Quick question for those in the know.

Currently an xnet customer and looking to move flats in the next few weeks into a new area, is there anyway to find out if there is room on the local exchange for more broadband connections?

A mate at work recently moved to a new area and subsequently found out that he couldn't get broadband, oh the humanity!

Is this as simple as ringing the XNET help desk and telling them what my new address might be, or is this something which I can't find out until I move?

Cheers