A chance moan in a text from a friend this morning led me to ten minutes of life-enhancing Wikipedia reading pleasure. I had mentioned that I would like to ban the word 'unacceptable' as used by government spokespeople and their ilk; he countered with 24/7 and 0207, and I suggested 1-2-1 (as in students requesting an individual tutorial; they do, I'm afraid). I wasn't sure what he meant by 0207 so I Googled it and found this: UK telephone code misconceptions.
I suspect Starcross Jim will enjoy it.
I have one of those peculiar 011x numbers now.
It's 0114 for anyone who's interested and hadn't yet guessed.