In extremis I guess you could always call London Information, or ask whichever ATS unit you are working, rather than boring holes in the sky around Burscough whilst scrabbling through your flight guides etc
There is also a fairly comprehensive listing at
www.lindsay.flyer.co.uk/airfield.htm
edited to plug my website. :-)
[This message has been edited by Cahlibahn (edited 19 April 2001).]