The method in my madness........I'm certain that our NATS friends would prefer us to not publish this number in such a free manner. Lord knows, it's engaged enough without others joining in.
I'm sure they can't wait now for the next complaint about air traffic noise to be made to that number.......well done.
And maybe I was just giving a gentle hint that the AIP online service, for which you simply register FOC, is a source of much info for all who can be bothered. It took me all of 30 secs from "Bookmarks" to getting the number.